SETI looks to Milky Way’s heart for alien signals

A new SETI collaboration is searching for repeating artificial radio signals from alien civilizations in the heart of our Milky Way galaxy.

Mysterious Milky Way filaments point to central black hole

Mysterious Milky Way filaments - found by the MeerKAT telescope in South Africa - appear to point to the supermassive black hole at our galaxy's heart.

Biggest monster star! And the heaviest stars

How big can stars get? How does our sun compare to them? And how did the biggest monster star get so big? Meet some of the biggest and most massive stars known.

Comet C/2021 T4 Lemmon is sweeping through southern skies

Comet C/2021 T4 Lemmon was discovered at Mount Lemmon Observatory in 2021. It's currently in the southern skies and might become bright enough for binoculars.

Find out why moths are attracted to light

Moths - and many other flying insects - are probably more disoriented by a close light source than they are attracted to it.

1st-ever Mars livestream! Watch the replay here

The European Space Agency broadcast the 1st-ever Mars livestream on June 2, 2023. Watch it here.

Super-Earth and mini-Neptune in synchronized dance

Astronomers say they've discovered a super-Earth and mini-Neptune exoplanet system where the orbits of the 2 worlds are synchronized in a cosmic dance.

2023 hurricane forecast: Busy Pacific, quieter Atlantic

The 2023 hurricane forecast is out! Due to El Niño, forecasters are calling for a busy Pacific basin and a quieter season in the Atlantic.

Best ocean photos: Are you longing for the sea?

Ocean photos from EarthSky friends across the globe in celebration of World Oceans Day 2023. Would you like to share your images?

Mars and the Beehive! See them together on June 1 and 2

Spot Mars and the Beehive cluster together on June 1 and 2, 2023. Use binoculars to see the starry cluster making a sparkling background for the red planet.