Is Mars still volcanically active? New study says maybe

Scientists studying the ancient Martian Tissint meteorite say they've found new evidence that Mars was volcanically active a few hundred million years ago ... and may still be today.

Study finds microplastics in Florida birds of prey for 1st time

A new study has confirmed the presence of microplastics in birds of prey, including hawks, ospreys and owls. The accumulation of microplastics in birds’ digestive systems could lead to poisoning, starvation and death.

Have you seen Venus and Mercury? Photos here

Wow! Thanks, everybody, for the wonderful Venus and Mercury photos! These 2 worlds have been nearest each other this week for all of 2020. A selection of photos from our community here, and many more at EarthSky Community Photos.

One of Jupiter’s Trojan asteroids has a comet-like tail

Trojan asteroids orbit 60 degrees ahead of and behind Jupiter, in its wide orbit at 5 times Earth's distance from the sun. Now the 1st Trojan asteroid has been found with a comet-like tail.

Wolf spiders may turn to cannibalism in a warming Arctic

Arctic wolf spiders’ tastes in prey might be changing. The changes could initiate a new cascade of food web interactions that could potentially alleviate some impacts of global warming.

Mercury and Venus pair up May 21 and 22

Depending on where you live worldwide, the planets Mercury and Venus will pair up most closely for the year on May 21 or 22, 2020.

Crescent Venus, moon, sun

Three crescents - Venus, the moon, the eclipsed sun - all at about the same phase.

Global warming is making hurricanes stronger

As Earth gets warmer, hurricanes are expected to get stronger. A study of 40 years of satellite data suggests it's already happening.

Global warming is influencing where tropical cyclones rage

While the global average number of tropical cyclones each year hasn't budged from 86 over the last 4 decades, climate change has been influencing the locations of these deadly storms.

Deneb, tail of Cygnus the Swan

Deneb marks the Tail of Cynus the Swan. At the same time, it marks the head of a crosslike pattern - an asterism - known as the Northern Cross.