Chemical fingerprint reveals a migrating exoplanet

The chemical fingerprint of exoplanet HD 209458b’s atmosphere reveals as many as 6 molecules and that it has migrated inwards from its birthplace much farther out in its star system.

Carbon dioxide levels now higher than at any time in past 3.6 million years

Levels of atmospheric carbon dioxide (CO2) and methane continued to rise in 2020, said NOAA, despite the economic slowdown caused by the coronavirus pandemic response.

Mars helicopter 1st flight postponed to next week

The Mars helicopter – named Ingenuity – now needs a software update, NASA said. The new 1st flight date will be next week, at the earliest.

Possible life signs in the clouds of Venus

A new analysis of data from the 1978 Pioneer Venus mission, by researchers at Cal Poly Pomona, finds evidence not only for phosphine, but also possible chemical disequilibrium in Venus’ atmosphere, an additional possible sign of biological activity.

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Leo? Here’s your constellation

From April through June, Leo the Lion — one of the zodiacal constellations — is a prominent fixture in the evening sky. It’s quite easy to spot.

Raindrop sizes similar on Earth and alien worlds

Whether the raindrop is made of water on Earth, methane on Titan, or liquid iron on an alien world, a new study shows that all raindrops will fall to the ground at a similar size.

Great chance to spot a very young moon April 12

From central North America on April 12, 2021, the moon will be less than 24 hours old. On April 12 at sunset, as soon as the sun slips below the horizon, the race begins to spot a young moon, less than a day old … before it sets!

Heads up! Small asteroid to pass very close on April 12

Small asteroid 2021 GW4 will pass extremely close to Earth on Monday, April 12, 2021. It’ll pass just 12,313 miles (19,816 km) from Earth’s surface, or about 5% the Earth-moon distance.

Hubble spots double quasars in merging galaxies

New images of the oldest known pairs of quasars, farthest and oldest yet seen, show that their home galaxies are colliding.

2021 Lyrid meteor shower: All you need to know

In 2021, the likely peak morning for the Lyrids is Thursday morning, April 22. But the mornings around that date might be good, too. The moon is waxing – staying out longer after dark each night – so you’ll want to watch the time of moonset carefully.

Egyptologists unearth a 3,000-year-old ‘lost golden city’

The long-sought “lost golden city” of Aten has been found near Luxor, Egypt, in the Valley of Kings. “The mission expects to uncover untouched tombs filled with treasures,” the scientists said.

Beta Centauri is a Southern Pointer Star

Beta Centauri isn’t as famous as Alpha Centauri, but together, these brilliant Southern Hemisphere stars have inspired legends and guided mariners.

The closest extragalactic fast radio burst yet?

Astronomers detected a new, nearby, repeating fast radio burst, originating from a spot near the great spiral galaxy M81.