Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? Researchers show that this is not due to the random pull of the planets, but rather the ...

S1 (ATLAS) has met its demise after traveling too close the sun. Imagers aboard the Solar and Heliospheric Observatory (SOHO) ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and several years ago he saw something he couldn’t explain. Farnocchia works at ...

A newly discovered comet is fascinating astronomers and amateur stargazers alike as it remains a brightening feature in the northeast night sky.

Last year there was much ballyhoo over the so-called “devil comet,” some will-it-won’t-it drama of Tsunchinshan-ATLAS, and the sudden discovery (and quick demise) of a third comet that failed to meet ...

Initial observations suggest the comet, called C/2025 F2 (SWAN), will continue getting brighter as it approaches the sun.

A few months ago, an asteroid created quite a buzz. At one point, asteroid 2024 YR4 had a 3.1% chance of hitting Earth, ...

YR4 made headlines in February with the news that it had a chance of hitting Earth on Dec. 22, 2032, as determined by an ...

Skywatchers throughout the Northern Hemisphere are enjoying views of the newly discovered Comet SWAN.

A new comet has been discovered. Now getting closer to the sun and expected to brighten over the next few weeks, comet C/2025 F2 (SWAN) is now visible in binoculars.

We usually get months or years of warning before comets reach their brightest, but 2025 F2 (SWAN) snuck up by surprise.

Comet SWAN25F was discovered using photos from the European Space Agency's SOHO spacecraft and can currently be spied using ...