The researchers called their new analytical technique "a milestone in SETI." One researcher commented: "We now know that fewer than one in 1,600 stars closer than about 330 light years host transmitters just a few times more powerful than the strongest radar we have here on Earth."

A new report concludes that large constellations of bright satellites in low-Earth orbit will fundamentally change ground-based astronomy and impact the appearance of the night sky for stargazers worldwide.

Take a couple of minutes and have a little fun with this new video from NASA

The long journey of these compounds - likely originating in the U.S. and Eurasia - shows the far-reaching impacts of industrial pollution.

The Japan Aerospace Exploration Agency said this week that it has now been officially informed that its Hayabusa2 space capsule - carrying precious dust captured from the surface of near-Earth asteroid Ryugu - is approved for landing in Australia.

2019 ranks among the 3 warmest years in records dating to the mid-1800s. In 2019, greenhouse gases reached their highest levels on record. Both facts are from the 30th annual State of the Climate report, a review of world climate based on contributions from more than 520 scientists in over 60 countries.

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

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.

We can't believe it. One of the most popular articles at EarthSky this week is the one asking, will Mars be as big as the moon on August 27? Short answer … no. This hoax has been circulating since 2003.

Some viruses can hide out in the body and reemerge at later times. Which viruses do this, and can the new coronavirus do this too?