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Tonight
Mars and the moon, August 19 and 20 mornings
Mars and the moon are close together in the sky on August 19 and 20, 2022. The moon reaches 3rd quarter phase at 04:36 UTC on August 19.
August 18, 2022
Space
A rare Neptune-sized planet orbiting a giant star
Astronomers say they have found a rare Neptune-sized planet orbiting a giant hot star, providing clues about why these worlds often lose their atmospheres.
August 18, 2022
Sun
Sun activity: Auroras! And maybe more to come
Sun activity August 18, 2022: Auroras observed overnight as G2 storm levels reached. G3 geomagnetic storm watch still active. Maybe more auroras to come!
August 18, 2022
Space
Dark matter mystery in Fornax Cluster
A new study suggests dwarf galaxies in the Fornax cluster lack of dark matter halos. This finding challenges the cosmological Standard Model.
August 17, 2022
Earth
Human World
Sudden downpour in Paris floods metro stations
Paris floods inundated some metro stations on Tuesday evening, August 16. A sudden, torrential rain struck the city just as commuters were leaving work.
August 17, 2022
Human World
Space
Launches: U.S. Space Force takes command
On today's Launches blog ... The U.S. Space Force officially assumed command of all U.S. military communications satellites.
August 17, 2022
Space
Asaph Hall finds Mars moon Phobos 145 years ago today
On this date in 1877, American astronomer Asaph Hall discovered Phobos, the larger of Mars' 2 moons. He discovered the other moon, Deimos, later that year.
August 17, 2022
Astronomy Essentials
Clusters Nebulae Galaxies
See Messier 20, the Trifid Nebula
If you have an extremely dark sky, you can see the Trifid Nebula on as a fuzzy patch in the Milky Way. Binoculars show more and a telescope even more detail.
August 17, 2022
Earth
Raising monarch butterflies for release
Monarch butterflies face many predators on their way from egg to butterfly. You can help to safely foster them on their journey with the steps found here.
August 16, 2022
Tonight
Jupiter and the moon, August 16, 17 and 18 mornings
Jupiter and the moon grow farther apart in the sky as the moon's lit face shrinks in size. Watch the moon recede from Jupiter on August 16, 17 and 18, 2022.
August 16, 2022
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