Cheap Astronomy answers more deep questions with gravity.
How hot was the cosmic microwave background? Do gravitational waves travel at the speed of light? How do we understand cosmological redshift?
How big was the universe when it was little? Can gravitational waves slow down?
Building the advances in technologies for today’s experiments & detectors. More on this discussion by @awesomeastropod & Barry Barish
Can gravitational waves eventually be used by astronomers to probe the interior of a black hole?
It’s time to review all that happened in astronomy during 2017! We have top 10 news for you.
Dr Brad Cenko discusses the recent discovery of a Kilonova event from the collision of two neutron stars.
Neutron stars find each other, promptly blow up, the new importance of gravitational wave astronomy!