Cosmology | Page 18 of 23 | Astronomy.com

Rocket experiment finds the universe brighter than we thought

If the light from a galaxy traveled 13.3 billion years to reach Earth, does that mean the light left this galaxy when the universe was 500 million years old? Was the galaxy 13.3 billion light-years away from Earth then?

It’s about time

POLARBEAR detects B-modes in the cosmic microwave background

What is polarization? What does it have to do with the cosmic microwave background?

Is the universe depressed?

Web Extra: Ripples in space

Data from Planck measure contaminants in the BICEP2 observation

Cosmology, Exotic Objects, Stars

Most metal-poor star hints at universe’s first supernovae

Cosmology, Exoplanets, Planets

Orion rocks! Pebble-sized particles may jump-start planet formation

Cosmology, Stars

A chemical signature of first generation of massive stars

Cosmology, Galaxies

Stardust team reports discovery of first potential interstellar space particles