Cosmic radio pulses repeating every few minutes or hours, known as long-period transients, have puzzled astronomers since ...

Researchers are using X-rays to discover invisible markings left on ancient parchment containing information from the Greek ...

"When Arp 220 is observed as a whole, it's one of the best places in the universe for astronomers to study how gravity, star ...

As gas falls toward a black hole, it heats up and shines. If the glow becomes intense enough, it can push incoming gas away. Astronomers call this balancing point the Eddington limit, and for decades ...

Alexander Venner picked his way by hand through the data collected by a now-retired NASA telescope called Kepler, which examined the sky for exoplanets ...

Astronomers using the Event Horizon Telescope (EHT) have uncovered a major clue in the mystery of how black holes produce ...

Astronomers using the James Webb Space Telescope (JWST) keep finding the same impossible thing: ancient supermassive black holes; monsters millions of times the sun’s mass, existing when the cosmos ...

A 3,000-light-year cosmic jet erupts from M87*, the first black hole ever imaged, offering a rare view of black hole activity from the galaxy Messier 87 ...

The signals provide astronomers with a look into the life, and death, of a massive star exploding into a supernova.

NASA’s 1986 Challenger mission was intended to inspire students to consider a future in space. The crew’s family is continuing their legacy.

The complex building blocks of life can form spontaneously in space, a new lab experiment shows. The complex precursors to biological molecules can form spontaneously in interstellar space, according ...

Jupiter's fourth-largest moon is a main character in our search for other life-friendly places in our solar system.