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.
When is the peak of the Perseid meteor shower in 2020? The greatest number of meteors is most likely to fall in the predawn hours on August 12, yet under the light of a wide waning crescent moon.
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.
Mars is getting exciting - bright now, and very red - and heading toward more brightness and more intense color by October. This past weekend, the moon and Mars were close. Photos here.
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.
Comet NEOWISE is now heading out of the inner solar system. It probably can't be seen with the eye now, although large binoculars can still pick it up. Here's a beautiful telescopic image of the comet, near the globular star cluster M53.
Mars is now bright and fiery red, rising to a peak in brightness for this 2-year period in October 2020. Catch it near the waning moon - late night to dawn - on August 7, 8 and 9, 2020.
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.
New research suggests that many of Mars' ancient channels, thought to have been carved by flowing surface water, were formed instead by meltwater beneath glacial ice sheets.
Satellite images have revealed 11 previously unknown emperor penguin colonies in Antarctica, identified by telltale reddish-brown guano stains the birds leave on the ice.