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.
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.
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!
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.
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.
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.
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.
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.
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.
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.