Brandon Specktor

Born less than 400 million years after the Big Bang, Maisie's galaxy is officially one of the four oldest galaxies ever discovered, a new JWST study reveals.

Gargantuan storms on Saturn can wrap around the entire planet and be seen for months. New research suggests their impacts persist hundreds of years longer than experts thought.

After accidentally shifting Voyager 2's antenna by two degrees, NASA fell out of contact with the interstellar probe on July 21. On Aug. 4, the agency succesfully reset the probe's antenna, restoring communications.

A skyscraper-size asteroid was revealed in year-old telescope data thanks to a new algorithm that could rock the way near-Earth objects are discovered.

NASA engineers have received a "heartbeat" signal from Voyager 2, bringing hope that they may be able to reestablish contact with the probe months ahead of schedule.

A gorgeous new image of a star system 5,000 light-years from Earth could finally explain how Jupiter-size planets are born from chaotic fields of gas.

Carl Sagan's personal copy of the Voyager Golden Record contains 27 pieces of music and 22 minutes of sound meant to capture the beauty of life on Earth.

A slowly rotating, ultrabright object 15,000 light-years from Earth defies every logical explanation that astronomers have thrown at it.

A stealthy asteroid the size of a 20-story building hid in the sun's glare before zooming uncomfortably close to Earth on July 13. Scientists didn't notice until July 15.

A black hole 10 billion light-years away suddenly 'switched on', becoming one of the brightest transient objects ever detected.

What did the sun look like before the devastating 1859 Carrington Event? Sketches from astronomer Richard Carrington hold the answer.

A large, skyscraper-size asteroid will pass close to Earth Sunday night (June 11), missing our planet by a few million miles.

Radio astronomers have discovered hundreds of long, thin structures emanating from our galaxy's supermassive black hole.

The discovery of 62 'irregular' moons orbiting Saturn brings the planet’s total to 145 — and hints at a chaotic past.

A rogue black hole may not be to blame for a mysterious streak of stars coursing through space, a new study suggests.

Scientists studying a star system in Orion witnessed one of the most powerful stellar eruptions ever seen — and it could be devastating to nearby planets.

Astronomers zoomed in on the dusty rings around Uranus in a new series of stunning James Webb Space Telescope images.

The potentially hazardous asteroid 2023 FM is larger than a 40-story building and will zoom within 7.5 lunar distances from Earth on Thursday, April 6, according to NASA.

An enormous coronal hole wider than 20 Earths has opened in the sun's atmosphere, and NOAA experts predict a moderate geomagnetic storm Friday (March 24) as a result.

Equinoxes would be physically impossible over a flat Earth, but that doesn't stop conspiracy theorists from trying to explain them.

Albert Einstein's theories of relativity have been proven to be true time and again in the more than 100 years following their publication.

The newly discovered asteroid 2023 DW could collide with Earth in February 2046, although the odds of an impact are low.