Search results for Kuiper Belt

Planetary Sciences May 20, 2026

Neptune's mysterious moon Nereid may be original survivor of Triton's chaotic arrival

Neptune's far-flung moon Nereid may be the last of the planet's original companions that managed to survive a cosmic crash, scientists reported Wednesday.

Planetary Sciences Mar 29, 2026

The moon that tipped a planet

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 degrees Celsius and a single ...

Planetary Sciences Mar 26, 2026

Hubble detects first-ever spin reversal of tiny comet

Astronomers using NASA's Hubble Space Telescope have found evidence that the spinning of a small comet slowed and then reversed its direction of rotation, offering a dramatic example of how volatile activity can affect the ...

Astronomy Mar 3, 2026

World's biggest astronomy camera seeks to answer pressing questions about the universe

The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids, which will from now on be discovered at an astonishing rate as it begins its Legacy Survey of ...

Astronomy Mar 2, 2026

Get ready for the Rubin Observatory's deluge of discoveries

It's been about eight months since the Vera Rubin Observatory (VRO) saw first light. Now the telescope is scanning the night sky to detect transient changes and sending alerts to astronomers and observatories around the world ...

Astronomy Mar 1, 2026

A 'Cosmic Positioning System' in the outer solar system

There have been plenty of attempts to resolve the "Hubble Tension" in cosmology. This feature describes how one of the most important variables in cosmology, the expansion of the universe, takes on different values depending ...

Astronomy Feb 23, 2026

Young 'sun' caught blowing bubbles by Chandra

For the first time, a much younger version of the sun has been caught red-handed blowing bubbles in the galaxy by astronomers using NASA's Chandra X-ray Observatory. The bubble—called an "astrosphere"—completely surrounds ...

Astronomy Feb 19, 2026

Why some objects in space look like snowmen: Gravitational collapse may shed light on contact binaries

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University researchers now have evidence of the surprisingly simple process that could be responsible for their ...

Astronomy Jan 21, 2026

Webb finds young sun-like star forging common crystals and flinging them into its outer disk

Astronomers have long sought evidence to explain why comets at the outskirts of our own solar system contain crystalline silicates, since crystals require intense heat to form and these "dirty snowballs" spend most of their ...

Astronomy Jan 20, 2026

ALMA reveals teenage years of new worlds

Astronomers have, for the first time, captured a detailed snapshot of planetary systems in an era long shrouded in mystery. The ALMA survey to Resolve exoKuiper belt Substructures (ARKS), using the Atacama Large Millimeter/submillimeter ...

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