Radio telescopes show theory of gravity holds in extreme situations
Three 'dead' stars demonstrate that Einstein had the right idea.
Arecibo is monitoring potentially hazardous near-earth asteroid
The world's second-largest radio telescope is back online after Hurricane Maria.
Hurricane Maria wreaks havoc on Arecibo radio telescope
It's compounding an already terrible situation.
Canada's new radio telescope starts mapping the universe
It could confirm whether dark energy truly causes the expansion of the universe.
HERA telescope upgrades could reveal the earliest stars
The array will soon be able to see 13.7 billion years into the past.
Black hole detection is becoming much easier
Scientists could double the number of known black holes within two years.
SETI's 'unusual signal' most likely came from Earth
Additional analysis has ruled out the possibility that it was sent by an alien civilization.
SETI researchers investigate an unusual signal
It's probably not a hint of aliens, but it's strong enough to raise eyebrows.
China finished the world's largest single-aperture telescope
The 500-meter dish will now listen out for signs of extra-terrestrial life.