Could a ‘Trojan Horse’ from space be headed our way? Harvard scientist Avi Loeb warns 3I/ATLAS might be more than the average ...

The rare interstellar comet 3I/ATLAS is under intense scrutiny as it passes through the solar system. Spacecraft like Hera, ...

Comet C/2025 A6 (Lemmon) is coming close to Earth, offering Californians a rare celestial viewing opportunity.

Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

“It’s all about the encounter physics.” With those words, MIT Professor of Planetary Sciences Richard Binzel emphasized the record-book quality of what will happen on April 13, 2029, when asteroid ...

Learn how astronomers spotted 2025 TF, an asteroid that passed just 266 miles over Antarctica in early October 2025.

Asteroid 2025 TP5, discovered just two days before its approach, will fly past Earth on October 15 at a dangerously close ...

The little space rock, called 2025 TF, safely passed within roughly 250 miles (400 km) of our planet on Tuesday (Sept. 30) at ...

A rare green comet is passing by Earth and can be seen with the naked eye from Oklahoma – and the next shot to catch it won’t ...

New telescope images show that the interstellar comet 3I/ATLAS is shooting a giant jet of gas and dust toward the sun. This ...

A small asteroid flew 266 miles over Antarctica. It was too small to pose a threat, but objects of that size can produce fireballs.

Diagram showing the orbit of 2014 KH39. Yellow shows the portion of its orbit above the plane of Earth's orbit (grey disk); blue is below the plane. When farthest, the asteroid travels beyond Mars ...