blog: cosmology question of the week

digravic material
Wednesday, January 16, 2019 at 12:00 AM CET

Lagrange's error
Wednesday, January 9, 2019 at 12:00 AM CET

point masses and point charges
Tuesday, December 18, 2018 at 12:00 AM CET

Feynman's curtain rings
Tuesday, December 11, 2018 at 12:00 AM CET

Einstein and Rayleigh
Tuesday, December 4, 2018 at 12:00 AM CET

primordial gravity waves
Tuesday, November 27, 2018 at 12:00 AM CET

wave coincidence
Tuesday, November 20, 2018 at 12:00 AM CET

symmetry in relativity
Tuesday, November 13, 2018 at 12:00 AM CET

transversality of waves
Wednesday, November 7, 2018 at 12:00 AM CET

obtuse light cones
Wednesday, October 31, 2018 at 12:00 AM CET

description of light rays
Wednesday, October 24, 2018 at 12:00 AM CEST

scalar electrodynamics
Wednesday, October 17, 2018 at 10:18 AM CEST

boosting potentials and fields
Wednesday, October 10, 2018 at 12:00 AM CEST

Kirchhoff-rules and field theory
Wednesday, October 3, 2018 at 12:00 AM CEST

CQW holiday project: CMB in a lab
Wednesday, July 25, 2018 at 12:00 AM CEST

sound of silence
Wednesday, July 18, 2018 at 12:00 AM CEST

Lagrange's radio, part 2
Wednesday, July 11, 2018 at 12:00 AM CEST

Lagrange's radio
Wednesday, July 4, 2018 at 12:00 AM CEST

gravitational waves and Hubble expansion
Wednesday, June 27, 2018 at 12:00 AM CEST

relativity shootout
Wednesday, June 20, 2018 at 12:00 AM CEST

black hole merger
Wednesday, June 13, 2018 at 12:00 AM CEST

zeppelins and space ships
Wednesday, June 6, 2018 at 12:00 AM CEST

CMB gravitational shear
Wednesday, May 30, 2018 at 12:00 AM CEST

Hubble molecules
Wednesday, May 23, 2018 at 12:00 AM CEST

equivalence reloaded
Wednesday, May 16, 2018 at 12:00 AM CEST

conservation in gravity
Wednesday, May 9, 2018 at 12:00 AM CEST

deadly magnetars
Wednesday, May 2, 2018 at 12:00 AM CEST

gravity of a magnetar
Wednesday, April 25, 2018 at 12:00 AM CEST

pulsar magnetic fields
Wednesday, April 25, 2018 at 12:00 AM CEST

Hooke's universe
Wednesday, April 18, 2018 at 12:00 AM CEST

anisotropic equilibrium
Wednesday, April 11, 2018 at 12:00 AM CEST

Higgs and hydrogen
Wednesday, April 4, 2018 at 12:00 AM CEST

deflection of waves
Wednesday, March 28, 2018 at 12:00 AM CEST

Lissajous galaxy
Wednesday, March 21, 2018 at 12:00 AM CET

mildly relativistic particles
Wednesday, March 14, 2018 at 12:00 AM CET

cooling of atoms
Wednesday, March 7, 2018 at 12:00 AM CET

Eddington gravity
Wednesday, February 28, 2018 at 12:00 AM CET

electricity and magnetism
Wednesday, February 21, 2018 at 12:00 AM CET

FLRW curvature
Wednesday, February 14, 2018 at 12:00 AM CET

relative relativity
Wednesday, February 7, 2018 at 12:00 AM CET

celestial harmonics
Wednesday, January 31, 2018 at 12:00 AM CET

gravity from the Maxwell-field
Wednesday, January 24, 2018 at 12:00 AM CET

light and gravity
Wednesday, January 17, 2018 at 12:00 AM CET

charge and mass
Wednesday, January 10, 2018 at 12:00 AM CET

Maxwell invariants
Wednesday, December 20, 2017 at 12:00 AM CET

Einstein invariants
Wednesday, December 13, 2017 at 12:00 AM CET

Newton invariants
Wednesday, December 6, 2017 at 12:00 AM CET

pericentre shift and perturbation
Wednesday, November 29, 2017 at 12:00 AM CET

Maxwell-gravity
Wednesday, November 22, 2017 at 12:00 AM CET

wiggles in the metric
Wednesday, November 15, 2017 at 12:00 AM CET

gravitational wave receivers
Wednesday, November 8, 2017 at 12:00 AM CET

electromagnetic wave receivers
Wednesday, November 1, 2017 at 12:00 AM CET

naive relativity
Wednesday, October 25, 2017 at 12:00 AM CEST

wave interferometers
Wednesday, October 18, 2017 at 12:00 AM CEST

black hole growth
Wednesday, October 11, 2017 at 12:00 AM CEST

locally flat metric in cosmology
Wednesday, October 4, 2017 at 12:00 AM CEST

CQW holiday project: ocean level around Greenland
Wednesday, July 26, 2017 at 12:00 AM CEST

horizons in relativity
Wednesday, July 19, 2017 at 12:00 AM CEST

tidal shear invariants
Wednesday, July 12, 2017 at 12:00 AM CEST

clocks in acceleration
Wednesday, July 5, 2017 at 12:00 AM CEST

120 - gasp! gasp!
Wednesday, June 28, 2017 at 12:00 AM CEST

120 - gasp!
Wednesday, June 21, 2017 at 12:00 AM CEST

magic of Pauli-matrices
Wednesday, June 14, 2017 at 12:00 AM CEST

Pauli and Euclid
Wednesday, June 7, 2017 at 12:00 AM CEST

Pauli and Lorentz
Wednesday, May 31, 2017 at 12:00 AM CEST

Pauli-decomposition
Wednesday, May 24, 2017 at 12:00 AM CEST

derivative of a constant
Wednesday, May 17, 2017 at 12:00 AM CEST

relativistic waves
Wednesday, May 10, 2017 at 12:00 AM CEST

Schwarzwald relativity
Wednesday, May 3, 2017 at 12:00 AM CEST

quantify curvature
Wednesday, April 26, 2017 at 12:00 AM CEST

duality and the propagation of waves
Sunday, April 23, 2017 at 10:41 AM CEST

dark energy in the lab
Wednesday, April 19, 2017 at 12:00 AM CEST

Rydberg satellites
Wednesday, April 12, 2017 at 12:00 AM CEST

entropy density
Wednesday, April 5, 2017 at 12:00 AM CEST

measurement of the Planck-constant
Wednesday, March 29, 2017 at 12:00 AM CEST

40, 20, 10
Wednesday, March 22, 2017 at 12:00 AM CET

intuition from the geodesic equation
Wednesday, March 15, 2017 at 12:00 AM CET

Lorentz force and acceleration
Wednesday, March 8, 2017 at 12:00 AM CET

Christoffel-symbols and geodesic motion
Wednesday, March 1, 2017 at 12:00 AM CET

charge asymmetry, part 2
Wednesday, February 22, 2017 at 12:00 AM CET

gravitational field of the hot sun
Wednesday, February 15, 2017 at 12:00 AM CET

spin-down of the Crab-pulsar
Wednesday, February 8, 2017 at 12:00 AM CET

electromagnetic duality
Wednesday, February 1, 2017 at 12:00 AM CET

gravity and retardation
Wednesday, January 25, 2017 at 12:00 AM CET

forces in relativity
Saturday, January 21, 2017 at 7:07 PM CET

very heavy and very light
Wednesday, January 18, 2017 at 12:00 AM CET

forces on dust particles
Wednesday, January 11, 2017 at 12:00 AM CET

funny way of writing Maxwell's equations
Wednesday, January 4, 2017 at 12:00 AM CET

comets and their tails
Wednesday, December 21, 2016 at 12:00 AM CET

Poynting-flux and magnetic charges
Wednesday, December 14, 2016 at 12:00 AM CET

electrodynamics with non-conserved charges
Wednesday, December 7, 2016 at 12:00 AM CET

gravitational fields for non-conservative systems
Wednesday, November 30, 2016 at 12:00 AM CET

dark star
Wednesday, November 23, 2016 at 12:00 AM CET

dissipation time scale
Wednesday, November 16, 2016 at 12:00 AM CET

motion or not?
Wednesday, November 9, 2016 at 12:00 AM CET

implications of a confirmed Lambda
Tuesday, November 8, 2016 at 4:12 PM CET

cosmology works?
Wednesday, November 2, 2016 at 12:00 AM CET

spherical gravitational wave
Wednesday, October 26, 2016 at 12:00 AM CEST

electricity and gravity
Wednesday, October 19, 2016 at 12:00 AM CEST

CPT and relativity
Wednesday, October 12, 2016 at 12:00 AM CEST

solutions to general relativity
Wednesday, October 5, 2016 at 12:00 AM CEST

CQW holiday project: Oort's cloud
Wednesday, July 27, 2016 at 12:00 AM CEST

gravity from a variational principle
Wednesday, July 20, 2016 at 12:00 AM CEST

parity of gravitational fields
Wednesday, July 13, 2016 at 12:00 AM CEST

time reversal in Einstein's field equation
Wednesday, July 6, 2016 at 12:00 AM CEST

Degree Of Symmetry
Wednesday, June 29, 2016 at 12:00 AM CEST

similarity in cosmology
Wednesday, June 22, 2016 at 12:00 AM CEST

similarity in modern physics
Wednesday, June 15, 2016 at 12:00 AM CEST

local field equations and nonlocal components
Wednesday, June 8, 2016 at 12:00 AM CEST

homogeneity of random fields
Wednesday, June 1, 2016 at 12:00 AM CEST

equivalence between gravity and inertia
Wednesday, May 25, 2016 at 12:00 AM CEST

interstellar (the movie)
Wednesday, May 18, 2016 at 12:00 AM CEST

underdetermined electrodynamics?
Wednesday, May 11, 2016 at 12:00 AM CEST

underdetermined general relativity?
Wednesday, May 4, 2016 at 12:00 AM CEST

divergence-free tensors
Wednesday, April 27, 2016 at 12:00 AM CEST

eternal sunshine
Wednesday, April 20, 2016 at 12:00 AM CEST

more power, R2!
Wednesday, April 13, 2016 at 12:00 AM CEST

moonwalk
Wednesday, April 6, 2016 at 12:00 AM CEST

Zeno and cosmology
Wednesday, March 30, 2016 at 12:00 AM CEST

equivalence
Wednesday, March 23, 2016 at 12:00 AM CET

pi in the sky
Wednesday, March 16, 2016 at 12:00 AM CET

scale of homogeneity
Wednesday, March 9, 2016 at 12:00 AM CET

non-ideal fluids
Wednesday, March 2, 2016 at 12:00 AM CET

speed of light and speed of gravity
Wednesday, February 24, 2016 at 12:00 AM CET

negative cosmological constant
Wednesday, February 17, 2016 at 12:00 AM CET

curved or straight?
Wednesday, February 10, 2016 at 12:00 AM CET

correlation function
Wednesday, February 3, 2016 at 12:00 AM CET

Lorentz boosted resistor
Wednesday, January 27, 2016 at 12:00 AM CET

Lorentz boosted capacitor
Wednesday, January 20, 2016 at 12:00 AM CET

Lorentz boosted coil
Wednesday, January 13, 2016 at 12:00 AM CET

redshift drift
Wednesday, January 6, 2016 at 12:00 AM CET

Hubble-collapse
Wednesday, December 23, 2015 at 12:00 AM CET

Schwarzschild radius of electrons
Wednesday, December 16, 2015 at 12:00 AM CET

replacing Maxwell's equations
Wednesday, December 9, 2015 at 12:00 AM CET

gravitational wave interferometers
Wednesday, December 2, 2015 at 11:41 PM CET

Hubble nucleus
Wednesday, November 25, 2015 at 12:00 AM CET

let it rip!
Wednesday, November 18, 2015 at 12:00 AM CET

no big bang
Wednesday, November 11, 2015 at 12:00 AM CET

vacuum fluctuations
Wednesday, November 4, 2015 at 12:00 AM CET

conditions for cosmic horizons
Wednesday, October 28, 2015 at 12:00 AM CET

falling faster
Wednesday, October 21, 2015 at 12:00 AM CEST

cosmologies without beginning
Wednesday, October 14, 2015 at 12:00 AM CEST

gravity (the movie)
Wednesday, October 7, 2015 at 12:00 AM CEST

CQW holiday project: gravitational field of a cube
Wednesday, July 29, 2015 at 12:00 AM CEST

temperature measurement
Wednesday, July 22, 2015 at 12:00 AM CEST

wrong sign in the induction equation
Wednesday, July 15, 2015 at 12:00 AM CEST

magnetic charges and energy conservation
Wednesday, July 8, 2015 at 12:00 AM CEST

too many Maxwell equations?
Wednesday, July 1, 2015 at 12:00 AM CEST

critical density in stationary universes
Wednesday, June 24, 2015 at 12:00 AM CEST

conservation laws in relativity
Wednesday, June 17, 2015 at 12:00 AM CEST

Lambda in 2 dimensions
Wednesday, June 10, 2015 at 12:00 AM CEST

cosmology and chemistry
Wednesday, June 3, 2015 at 12:00 AM CEST

balance dark matter and dark energy
Wednesday, May 27, 2015 at 12:00 AM CEST

thermal vs. kinetic SZ-effect
Wednesday, May 20, 2015 at 12:00 AM CEST

mechanical similarity and the moon landing
Wednesday, May 13, 2015 at 12:00 AM CEST

FLRW-fluids
Wednesday, May 6, 2015 at 12:00 AM CEST

neutrinos everywhere!
Wednesday, April 29, 2015 at 12:00 AM CEST

Lenz-Runge-Laplace vector
Wednesday, April 22, 2015 at 12:00 AM CEST

cosmic acceleration maxed out
Wednesday, April 15, 2015 at 12:00 AM CEST

boosted electric and magnetic fields
Wednesday, April 8, 2015 at 12:00 AM CEST

Darwin-term in the Kepler-problem
Wednesday, April 1, 2015 at 12:00 AM CEST

constant radius of the Hubble sphere
Wednesday, March 25, 2015 at 12:00 AM CET

charge asymmetry
Wednesday, March 18, 2015 at 12:00 AM CET

mass content of the Universe
Wednesday, March 11, 2015 at 12:00 AM CET

oscillations in the expansion history
Wednesday, March 4, 2015 at 12:00 AM CET

recollapsing FLRW-universes
Wednesday, February 25, 2015 at 12:00 AM CET

just two equations?
Wednesday, February 18, 2015 at 12:00 AM CET

FLRW-universes with no big bang
Wednesday, February 11, 2015 at 12:00 AM CET

ambiguity in the Planck-units?
Wednesday, February 4, 2015 at 12:00 AM CET

cosmology in SI-units
Wednesday, January 28, 2015 at 12:00 AM CET

Einstein's grandfather clock
Wednesday, January 21, 2015 at 12:00 AM CET

fine structure for Keplerium
Wednesday, January 14, 2015 at 12:00 AM CET

inertial forces and mechanical work
Wednesday, December 17, 2014 at 12:00 AM CET

Eddington-limit for muons
Wednesday, December 10, 2014 at 12:00 AM CET

cosmic neutrinos in ICECUBE
Wednesday, December 3, 2014 at 12:00 AM CET

tidal stretching of Palomar 5
Wednesday, November 26, 2014 at 12:00 AM CET

a quantum of sunshine
Wednesday, November 19, 2014 at 12:00 AM CET

tidal forces in the gravity train
Wednesday, November 12, 2014 at 12:00 AM CET

anti-Earth
Wednesday, November 5, 2014 at 12:00 AM CET

correlation coefficient
Wednesday, October 29, 2014 at 12:00 AM CET

Eddington temperature
Wednesday, October 22, 2014 at 12:00 AM CEST

Boltzmann-tail of the Planck-spectrum
Wednesday, October 15, 2014 at 12:00 AM CEST

natural value of the Hubble constant
Wednesday, October 8, 2014 at 12:00 AM CEST

Boltzmann-photons
Wednesday, October 1, 2014 at 12:00 AM CEST

CQW holiday project: NFW-wave function
Wednesday, July 30, 2014 at 12:00 AM CEST

Roche limit for a drop of water
Wednesday, July 23, 2014 at 12:00 AM CEST

periapsis recession
Wednesday, July 16, 2014 at 12:00 AM CEST

units of spectra
Wednesday, July 9, 2014 at 12:00 AM CEST

a much smaller Planck-mass
Wednesday, July 2, 2014 at 12:00 AM CEST

Newton's Indian rope trick
Wednesday, June 25, 2014 at 12:00 AM CEST

asymptotic Hubble-function
Wednesday, June 18, 2014 at 12:00 AM CEST

cosmic Unruh-effect
Wednesday, June 11, 2014 at 12:00 AM CEST

Dirac's large numbers
Wednesday, June 4, 2014 at 12:00 AM CEST

temperature in a FLRW-universe
Wednesday, May 28, 2014 at 12:00 AM CEST

Sunyaev-Zel'dovich effects with neutrinos
Wednesday, May 21, 2014 at 12:00 AM CEST

cluster cooling by immersion into the CMB
Wednesday, May 14, 2014 at 12:00 AM CEST

boundary to quantum cosmology
Wednesday, May 7, 2014 at 12:00 AM CEST

coasting dark energy universe
Wednesday, April 30, 2014 at 12:00 AM CEST

Ricci-scalar in a FLRW-universe
Wednesday, April 23, 2014 at 12:00 AM CEST

Wien displacements in many dimensions
Wednesday, April 16, 2014 at 12:00 AM CEST

braking by scattering
Wednesday, April 9, 2014 at 12:00 AM CEST

Planck, Bose and Boltzmann
Wednesday, April 2, 2014 at 12:00 AM CEST

fundamentals of cosmology
Wednesday, March 26, 2014 at 12:00 AM CET

fat Hubble sphere
Wednesday, March 19, 2014 at 12:00 AM CET

astronomy units in cosmology
Wednesday, March 12, 2014 at 12:00 AM CET

axioms of Lagrangian mechanics
Wednesday, March 5, 2014 at 12:00 AM CET

quantum statistics
Wednesday, February 26, 2014 at 12:00 AM CET

cosmic slow-motion
Wednesday, February 19, 2014 at 12:00 AM CET

Eddington's number
Wednesday, February 12, 2014 at 12:00 AM CET

gravitational Rydberg constant
Wednesday, February 5, 2014 at 12:00 AM CET

magic of the Gaussian distribution
Wednesday, January 29, 2014 at 12:00 AM CET

relativistic natural system of units
Wednesday, January 22, 2014 at 12:00 AM CET

subway to New Zealand
Wednesday, January 15, 2014 at 12:00 AM CET

nucleosynthesis with unstable nuclei
Wednesday, January 8, 2014 at 12:00 AM CET

island universe
Wednesday, December 18, 2013 at 12:00 AM CET

life in the early universe
Wednesday, December 11, 2013 at 12:00 AM CET

quantum microwave background
Wednesday, December 4, 2013 at 12:00 AM CET

classical photons
Wednesday, November 27, 2013 at 12:00 AM CET

radiation density
Wednesday, November 20, 2013 at 12:00 AM CET

slow acoustic waves
Wednesday, November 13, 2013 at 12:00 AM CET

natural scale of the Universe
Wednesday, November 6, 2013 at 12:00 AM CET

galaxy rotation curves at large radii
Wednesday, October 30, 2013 at 12:00 AM CET

cosmic neutrino background
Wednesday, October 23, 2013 at 12:00 AM CEST

shape of the Hubble-law
Wednesday, October 16, 2013 at 12:00 AM CEST

equation of state of baryons
Wednesday, October 9, 2013 at 12:00 AM CEST

thermal wavelength
Wednesday, October 2, 2013 at 12:00 AM CEST

Planck's summer: variations in \Lambda
Wednesday, August 7, 2013 at 12:00 AM CEST

Planck's summer: varying electron masses
Wednesday, July 31, 2013 at 12:00 AM CEST

Planck's summer: observation of the CNB
Wednesday, July 24, 2013 at 12:00 AM CEST

Planck's summer: gauge independence of cosmological surveys
Wednesday, July 17, 2013 at 12:00 AM CEST

Planck's summer: particle size matters!
Wednesday, July 10, 2013 at 12:00 AM CEST

Planck's summer: CMB observations without CMB photons
Wednesday, July 3, 2013 at 12:00 AM CEST

CMB as an ideal black body
Wednesday, June 26, 2013 at 12:00 AM CEST

CMB recombination
Wednesday, June 19, 2013 at 12:00 AM CEST

advection with the Hubble flow
Wednesday, June 12, 2013 at 12:00 AM CEST

supernovae at high redshift
Wednesday, June 5, 2013 at 12:00 AM CEST

dark energy takes over...
Wednesday, May 29, 2013 at 12:00 AM CEST

size of the Universe
Wednesday, May 22, 2013 at 12:00 AM CEST

tests for FLRW-cosmologies
Wednesday, May 15, 2013 at 12:00 AM CEST

energy input into the CMB
Wednesday, May 8, 2013 at 12:00 AM CEST

inflationary perturbations
Wednesday, May 1, 2013 at 12:00 AM CEST

invariants of the lensing Jacobian
Wednesday, April 24, 2013 at 12:00 AM CEST

Lambda as a source of energy
Wednesday, April 17, 2013 at 12:00 AM CEST

thermal equilibrium and the CMB
Wednesday, April 10, 2013 at 12:00 AM CEST

limitations of the NFW-profile shape
Wednesday, April 3, 2013 at 12:00 AM CEST

decaying vorticity
Wednesday, March 27, 2013 at 12:00 AM CET

Higgs mechanism
Wednesday, March 20, 2013 at 12:00 AM CET

electroweak phase transition
Wednesday, March 13, 2013 at 12:00 AM CET

thinking outside the box
Wednesday, March 6, 2013 at 12:00 AM CET

back to the future
Wednesday, February 27, 2013 at 12:00 AM CET

Hubble slow motion
Wednesday, February 20, 2013 at 12:00 AM CET

scale-invariance of perturbations
Wednesday, February 13, 2013 at 12:00 AM CET

cosmic conspiracy for rotation curves
Wednesday, February 6, 2013 at 12:00 AM CET

gravity in 2d and 3d
Wednesday, January 30, 2013 at 12:00 AM CET

homogeneous and anisotropic cosmology
Wednesday, January 23, 2013 at 12:00 AM CET

destruction of gravitationally bound systems
Wednesday, January 16, 2013 at 12:00 AM CET

conformal time in Lambda-driven expansion
Wednesday, January 9, 2013 at 12:00 AM CET

virial theorem in clusters
Wednesday, December 19, 2012 at 12:00 AM CET

peculiar motion and the CMB
Wednesday, December 12, 2012 at 12:00 AM CET

inflationary dynamics
Wednesday, December 5, 2012 at 12:00 AM CET

Hubble expansion and superluminality
Wednesday, November 28, 2012 at 12:00 AM CET

redundancy in the Friedmann equations
Wednesday, November 21, 2012 at 12:00 AM CET

mechanical similarity and planetary orbits
Wednesday, November 14, 2012 at 12:00 AM CET

cold core (aka cooling flow)
Wednesday, November 7, 2012 at 12:00 AM CET

gravitationally bound systems
Wednesday, October 31, 2012 at 12:00 AM CET

CMB and SNe
Wednesday, October 24, 2012 at 12:00 AM CEST

gravitational interaction of photons
Wednesday, October 17, 2012 at 12:00 AM CEST

dark energy equation of state
Wednesday, October 10, 2012 at 12:00 AM CEST

gravity and dimensionality
Wednesday, October 3, 2012 at 12:00 AM CEST

uncertainty and inflation
Wednesday, September 26, 2012 at 12:00 AM CEST

planetary atmospheres
Wednesday, September 19, 2012 at 12:00 AM CEST

Copernican principle
Wednesday, September 12, 2012 at 12:00 AM CEST

atmospheric pressure on Venus
Wednesday, September 5, 2012 at 12:00 AM CEST

Sunyaev-Zel'dovich effect
Wednesday, July 11, 2012 at 12:00 AM CEST

non-trivial topology of the Universe
Wednesday, July 4, 2012 at 12:00 AM CEST

baryonic acoustic oscillations
Wednesday, June 27, 2012 at 12:00 AM CEST

haloes of all sizes
Wednesday, June 20, 2012 at 12:00 AM CEST

static universe
Wednesday, June 13, 2012 at 12:00 AM CEST

gravitational lensing
Wednesday, June 6, 2012 at 12:00 AM CEST

black body in 4 dimensions
Wednesday, May 30, 2012 at 12:00 AM CEST

selection bias - cosmo CSI
Wednesday, May 23, 2012 at 12:00 AM CEST

time-variation of the CMB
Wednesday, May 16, 2012 at 12:00 AM CEST

CDM particle properties
Thursday, May 10, 2012 at 12:00 AM CEST

negative redshifts
Thursday, May 3, 2012 at 12:00 AM CEST

fine structure constant
Thursday, April 26, 2012 at 12:00 AM CEST

Olbers' paradoxon
Thursday, April 19, 2012 at 12:00 AM CEST

to infinity and beyond...
Thursday, April 12, 2012 at 12:24 AM CEST

CMB dipole - fact or fiction?
Wednesday, April 11, 2012 at 11:04 PM CEST

digits in physical constants
Thursday, April 5, 2012 at 1:00 AM CEST

CMB temperature
Thursday, March 29, 2012 at 1:00 AM CEST

age of the Universe
Thursday, March 22, 2012 at 1:00 AM CET

time-dependence of cosmological constants
Thursday, March 15, 2012 at 1:00 AM CET

Mercury's orbit
Wednesday, March 14, 2012 at 1:00 AM CET

precision cosmology
Wednesday, March 7, 2012 at 11:01 PM CET

lensing on an expanding metric
Thursday, March 1, 2012 at 12:14 AM CET

Minkowski metric
Saturday, February 25, 2012 at 1:21 PM CET

voids
Monday, February 20, 2012 at 8:07 PM CET

Schwarzschild radius
Friday, February 17, 2012 at 7:46 PM CET

distance measures
Friday, February 10, 2012 at 10:23 AM CET

Gaussianity
Friday, February 3, 2012 at 10:25 AM CET

redshift space
Friday, January 27, 2012 at 10:26 AM CET

SZ-effect
Friday, January 20, 2012 at 10:26 AM CET

dark energy
Friday, January 13, 2012 at 10:27 AM CET

Hubble function
Friday, January 6, 2012 at 10:27 AM CET

nucleosynthesis
Friday, December 30, 2011 at 10:28 AM CET

coldest place
Friday, December 23, 2011 at 10:29 AM CET

distances
Friday, December 16, 2011 at 10:29 AM CET

change of redshift
Friday, December 9, 2011 at 10:30 AM CET