Posts by 

Paul Scott Anderson

News from Enceladus via Webb: A huge water plume!

NASA's Webb Space Telescope has observed the largest water plume on Enceladus ever seen. Details about the analysis results will be published in a new paper.

Weird comet in asteroid belt targeted by Webb

The Webb telescope has observed Comet Read, a weird comet in the main asteroid belt. Among the findings ... water vapor, yes. But carbon dioxide, no.

Distant volcano-covered world is the size of Earth

Astronomers say they have discovered an Earth-sized exoplanet 90 light-years away that may be a volcano-covered world, possibly as active as Jupiter's moon Io.

Evidence for ancient river on Mars in new rover images

NASA's Perseverance rover has spotted new signs of an ancient river on Mars, deeper and faster than any seen before. Curving layers of rocks provide the clues.

Saturn’s rings much younger than Saturn itself

How old are Saturn's rings? A new study suggests they're only about 400 million years old at most, much younger than Saturn itself. Dust provided new clues.

Moon’s inner core is solid, like Earth’s, scientists say

Researchers in France say that the moon's inner core is solid, with a density close to that of iron, solving a long-standing debate about the heart of the moon.

Oceans for 4 Uranus’ moons likely, astronomers say

A new study suggests oceans for 4 Uranus' moons. If true, they'd join a growing number of ocean worlds in the outer part of our solar system.

Webb finds water vapor near star with exoplanet

Astronomers using NASA's Webb Space Telescope have found signs of water vapor. But is it on a rocky exoplanet or the planet's star?

SETI Institute expands search for aliens with VLA

As part of SETI, astronomers are now using the Very Large Array radio telescope array in a comprehensive new search for radio signals from alien civilizations.

Marsquakes reveal Red Planet’s deep secrets

NASA's InSight lander provided seismic data from marsquakes that shows that Mars' core is smaller and denser than scientists previously thought.