Posts by 

Paul Scott Anderson

Cracked surface of Venus behaves like sea ice

Venus' cracked surface suggests a moveable crust for this nearby world, and suggests the planet might still be geologically active today.

Moons of rogue planets could have water and life

A new study from scientists at LMU in Germany says that there could be enough heat and liquid water on moons of rogue planets - free-floating worlds with no suns - to support life. Cosmic rays could drive processes such as photosynthesis, instead of direct sunlight.

Are Earth-like biospheres rare?

A new study from researchers at the University of Naples in Italy suggests that highly-evolved, Earth-like biospheres may be rare on exoplanets. Many stars either don't emit enough energy for life to develop past the basic photosynthesis stage or don't live long enough for life to evolve on any planets that may otherwise be suitable.
Space

Mini-Neptune’s atmosphere ripe for study

A newly-discovered mini-Neptune's atmosphere is ideal for study by space telescopes.

Mars methane mystery? Depends on the time of day

Scientists think they've solved the mystery of why NASA's Curiosity rover keeps detecting methane on Mars, but ESA's Trace Gas Orbiter doesn't.
Earth

Today in science: The Tunguska explosion

The Tunguska explosion on June 30, 1908, is the largest asteroid impact in recorded history. It flattened 830 square miles of Siberian forest.

Huge and opaque ‘something’ dims a giant star

What do astronomers do when something dims a giant star, and they can't figure out what it is? A new study raises more questions than answers.

Methane on Enceladus: A possible sign of life?

Something is producing a lot of methane in Enceladus' ocean. Could it be life? While not proven yet, a new study by a team of biologists seems to support that exciting possibility.

Earth’s lopsided core? Strangeness in our planet’s interior

A new computer model suggests Earth's lopsided core growth. That is, the inner core grows faster on one side than the other. Faster cooling on one side of the core helps explain why.

See 1st new images of Ganymede in over 20 years

NASA's Juno spacecraft has sent back the first new closeup images of Jupiter's largest moon Ganymede in over 20 years. They show the moon's craters, light and dark patches and tectonic faults in beautiful detail. See them here!