New Haven, Conn. — Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its ...

Our solar system’s latest and only third known interstellar visitor is becoming more fascinating by the week. Spotted in early July, the object, dubbed 3I/ATLAS, is widely believed to be a comet. It’s ...

Orbiting in the far reaches of the solar system are pristine remnants from its beginning. These unique objects, called planetesimals, are the building blocks of planets. In a new paper, New Mexico ...

The trans-Neptunian object nicknamed Ammonite moves across the sky over several hours in May 2023. Its diameter is estimated to be between about 135 and 235 miles. NAOJ / ASIAA Astronomers have just ...

ALMA(ESO/NAOJ/NRAO)/M. McClure et al. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this ...

This is HOPS-315, a baby star where astronomers have observed evidence for the earliest stages of planet formation. The image was taken with the Atacama Large Millimeter/submillimeter Array (ALMA), in ...

ALMA image of HOPS-315, a still-forming planetary system. Credit: European Southern Observatory For the first time, scientists have captured the earliest known stage of rocky planet formation around a ...

In a groundbreaking discovery, astronomers have, for the first time, observed the formation of a new solar system. Using a combination of data from the Atacama Large Millimeter/submillimeter Array ...

An image from the ALMA telescope array in Chile shows jets of silicon monoxide blowing away from the young star HOPS-315. The blue jet is moving towards Earth, and the red jet is moving away from us.

Copyright 2025 The Associated Press. All Rights Reserved. Copyright 2025 The Associated Press. All Rights Reserved. Astronomers have discovered the earliest seeds of ...