We suspect most of you have not seen this comet, which is rising only shortly before the sun now. Let the Virtual Telescope's Gianluca Masi show it to you online this week.
Markarian's Chain forms part of the Virgo galaxy cluster. When viewed from Earth, the galaxies lie along a smoothly curved line. Armenian astronomer Benjamin Markarian discovered these galaxies' common motion in the early 1960s. American astronomer Fred Espenak captured this image.
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.
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.
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.
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.
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.