Posts by 

Paul Scott Anderson

Could violent stellar flares make planets more habitable?

Could violent stellar flares actually make planets more habitable? A new study into ultraviolet habitable zones says yes.

Surprise! A Jupiter-like exoplanet with water-ice clouds

A Jupiter-like exoplanet with water-ice clouds? NASA's Webb space telescope has found the 1st signs of cirrus-like clouds on exoplanet Epsilon Indi Ab.

Ancient lake on Mars? Rover finds strong new evidence

NASA's Curiosity rover has found yet more evidence for an ancient lake on Mars. Metallic minerals in preserved rock ripples provide the clues.

New organics on Mars raise questions about life

NASA's Curiosity rover has identified the most diverse collection of organics on Mars ever found. They include some organics never seen before.

Waves on other planets vary widely, new MIT study suggests

A new study from MIT suggests that waves on other planets should vary greatly. Scientists are looking at the lakes and seas of Saturn's moon Titan for clues.

How much water on exoplanets does life need?

Astronomers think water is essential to life as we know it. So how much water on exoplanets does life need? A new study suggests 20-50% of Earth's water.

Can we find alien life in groups of similar planets?

A new study from Japan suggests we could search for a sign of alien life by looking for suspiciously similar planets close together.

Huge ancient sandstorm on Mars revealed in rippled sediments

Dust storms are common on Mars. But ripples in blocks of bedrock have revealed evidence of a more intense sandstorm on Mars about 3.5 billion years ago.

Why do Jupiter’s large moons outnumber Saturn’s?

Jupiter's large moons - Ganymede, Callisto, Io and Europa - number four. But Saturn has just one large moon, Titan. Why? It may be the planets' magnetic fields.

There’s less ice in moon’s shadows than 1st thought

Ice in moon’s shadows is scarce, NASA’s ShadowCam finds, with only small, scattered deposits instead of the abundant ice once expected.