In the century or so since Edwin Hubble discovered that the Milky Way is just one of countless galaxies in the universe, our understanding of our home galaxy has grown in leaps and bounds. But as ...

Molecular emission lines from mysterious icy objects captured by the ALMA telescope. The background image is an infrared composite color map, where 1.2-micron light is shown in cyan and 4.5-micron ...

Scientists interpret this persistent brightening as a global activation of surface water ice, a process that increased ...

The Oort cloud is traditionally thought of as a vast shell of perhaps trillions of icy objects encasing our solar system, serving as the final boundary between us and the dark reaches of interstellar ...

Direction of Object 1 and 2 (solid yellow line). The green squares represent their possible locations based on the kinematic distance estimates (see Section 4.3 and 4.4). The background is an artist's ...

University of Warwick astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being consumed by a white dwarf star outside our solar system. Subscribe to our ...

New research may shine a light on part of outer space's great mysteries: the Oort Cloud. The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of ...

Photos show that comet C/2025 F2 (SWAN) experienced a "major eruption," causing it to become temporarily brighter. However, it's still unclear whether the icy object is a true "cryovolcano." When you ...

A NASA spacecraft 4 billion miles from Earth yielded its first close-up pictures Wednesday of the most distant celestial object ever explored, depicting what looks like a reddish snowman. Ultima Thule ...

Since its discovery in 1927, Centaur 29P/Schwassmann-Wachmann 1 has baffled scientists with its highly active and quasi-periodical outbursts, which vary in intensity every six to eight weeks. A closer ...