Space
Nearby super-Earth is super-hot and airless
The Webb space telescope observed nearby super-Earth LHS 3844 b. It found it blazingly hot and airless, close to its star.
Sun
Sun news: A pair of fiery simultaneous eruptions
Sun news for May 12, 2026: Sun activity returned to low levels. But the sun granted us with double, simultaneous, fiery prominences on the solar horizon.
Astronomy Essentials
Tonight

Visible planets and night sky guide for May

Visible planets and night sky guide. Tomorrow before sunrise, look for the thin waning crescent moon shining near Saturn and Mars.
Brightest Stars

Polaris is the present-day North Star of Earth

Many people think Polaris is the brightest star, but it's only 48th in brightness. Still, Polaris is famous because the entire northern sky wheels around it.
Human World

Pentagon UFO files released: Views from the moon and more

On May 8, 2026, the U.S. Pentagon released its 1st batch of Pentagon UFO files. They include some from Apollo moon missions 11, 12 and 17.
Constellations
Tonight

How to see the Northern Crown (Corona Borealis)

Corona Borealis, the Northern Crown, is an almost-perfect semicircle of stars. Learn to find it and identify its brightest star, and about its mythology.
Today's Image

See the best Milky Way photos of 2026 here

See 10 of the best Milky Way photos from across the globe, from the 2026 Milky Way Photographer of the Year contest, sponsored by Capture the Atlas.
Space

Will the Blaze Star explode in 2026? How to see it

We're still waiting for the Blaze Star to go nova! Will it happen in 2026? Here's how to find Corona Borealis so you're ready when this star goes kablooey.
Tonight

Vega is a bright bluish star on May evenings

The blue star Vega is the brightest light in the distinctive constellation Lyra the Harp. Vega is easy to spot in May by looking northeast in the evening.
Space

Surprise! Tiny world with an atmosphere in outer solar system

Researchers have found that outer solar system object 2002 XV93 is a tiny world with an atmosphere. How does such a small object have an atmosphere?