The rare comet 3I/ATLAS, an interstellar visitor, is set to make its closest approach to Earth on December 19. This article provides tips on how to observe this cosmic spectacle.

Could a frozen traveler from another star system hold secrets about worlds beyond our own? Astronomers think 3I/ATLAS might. This comet, the only third confirmed interstellar object ever detected, ...

Could a frozen wanderer older than the Sun rewrite what we know about the galaxy’s past? Comet 3I/ATLAS, the third known ...

Interstellar object 3I/Atlas appears in NASA’s Punch images during a 40-day study of Comet Swan, offering new data on motion near the Sun ...

Before the ribbon cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by Westfield High School Astronomy Club members Krystyna Goulette and Kaitlyn Goulette — ...

The debate over the interstellar object 3I/ATLAS escalated sharply this week as a scientist publicly accused amateur ...

Our Sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Clocks tick faster on Mars than they do on Earth, in part because Mars experiences less gravitational pull from the Sun. Now ...

In a new study published in The Astrophysical Journal, a group of researchers from the University of Colorado Boulder ...

Scientists in Boulder are using existing NASA spacecraft to track a rare interstellar comet called 31/ATLAS as it travels ...

A new study led by Southwest Research Institute (SwRI) links quasi-periodic pulsations (QPPs) in solar flares to dynamic ...