Ceres’ bright spots come from salty water below

The mysterious bright spots on Ceres caused a sensation when the Dawn spacecraft first spied them in 2015. Now, they’re known to be salt deposits from a recent or ongoing percolation of briny water from a large reservoir in Ceres’ interior.

Insect apocalypse? Not so fast, at least in North America

Recent reports of dramatic declines in insect populations have sparked concern about an ‘insect apocalypse.’ But a new analysis of data from sites across North America suggests the case isn’t proven.

Astronomers spy a Milky Way look-alike 12 billion light-years away

This distant galaxy – SPT0418-47 – surprised astronomers by being organized enough to have a spinning disk and a galactic bulge, early in the history of our universe.

Visualize the Perseid meteor stream in space

This visualization by Ian Webster and Peter Jenniskens uses NASA data to render known Perseid meteoroids in space. Don’t miss this!

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Arecibo Observatory damaged by broken lashing cable

The new damage to Arecibo, caused by the heavy cable, happened while repairs from 2017’s Hurricane Maria were still ongoing.

Another intense summer of fires in Siberia

Following an active 2019 season, fires in Siberia in 2020 have again been abundant and widespread, and have produced abnormally large carbon emissions.

Surprising number of exoplanets could host life

A new study suggests that distant stars in our Milky Way galaxy might be orbited by as many as 7 Earth-like planets, in the absence of a gas giant planet like Jupiter.

Images show Martian night sky pulsing with ultraviolet light

Vast areas of Mars’ nightside atmosphere glow and pulsate with ultraviolet light, according to images from NASA’s MAVEN spacecraft.

What is a waning crescent moon?

You’ll find a waning crescent moon in the east before sunrise. It’s waning toward new moon, when the moon will be between Earth and the sun.

Perseid meteors 2020: All you need to know

In 2020, the peak mornings for the Perseid meteor shower – August 11, 12 and 13 – will feature meteors under moonlight. Still, the Perseids are bright. We expect a good number to overcome the moonlight. Here’s how to optimize your chances.

A deep, giant cloud disruption found on Venus

Researchers have discovered a giant atmospheric wave-like phenomenon in Venus’ lower atmosphere, unlike anything else seen in the solar system. Evidence shows it has existed since at least 1983, but went completely undetected until now.

These dogs are trained to sniff out the coronavirus

Scientists have been working with professional trainers in South Australia, Victoria and New South Wales to train dogs to sniff out Covid-19. Most of the dogs have a 100% success rate.

A surprising spiral around a planet factory

A new image of the planet-forming disk around the young star RU Lup reveals a beautiful and unexpected massive spiral of gas, reminiscent of a spiral galaxy.