Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Brightest Stars
Delta Cephei helps measure cosmic distances
Delta Cephei is an inconspicuous variable star in the northern constellation Cepheus the King. This important star helped establish the cosmic distance scale.
September 24, 2024
Human World
Space
SKA telescope gets its ‘1st fringes’
The SKA telescope SKA-Low has successfully measured a correlated signal using 2 of its stations. Astronomers call such a measurement "1st fringes."
September 24, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide for September 2024. Tomorrow morning, look for the moon near Mars, the twin stars Castor and Pollux, and bright Procyon.
September 24, 2024
Earth
Is there a threat of landslides where you live? See the map
A new map from the USGS shows which areas of the United States are susceptible to the threat of landslides. See the map and read more about landslides.
September 23, 2024
Sun
Sun news September 24: Chunk of solar stuff coming at Earth
Sun news for September 24, 2024. A chunk of solar stuff is coming our way at Earth. Earth-directed coronal mass ejection may arrive midday tomorrow.
September 23, 2024
Astronomy Essentials
2024 September equinox: All you need to know
The September equinox is here! Autumn for the Northern Hemisphere. Spring for the Southern Hemisphere. Here's all you need to know.
September 22, 2024
Human World
Did humans drive Cyprus dwarf hippos and elephants extinct?
A new study shows that now-extinct dwarf hippos and elephants on the island of Cyprus were likely driven to extinction by humans about 14,000 years ago.
September 22, 2024
Space
Spaceflight
Mars mission to send Blue and Gold satellites to red planet
The Mars ESCAPADE mission will study the red planet's magnetosphere using a pair of small satellites. ESCAPADE will launch no earlier than spring 2025.
September 22, 2024
Human World
Equinox shadows trace a straight line from west to east
Equinox shadows are unique. On this day - and only this day - the tip of an upright stick's shadow follows a straight path, west to east, all day long.
September 21, 2024
Earth
Did Earth have rings 466 million years ago?
Did Earth have rings eons ago? A new study suggests that Earth had its own ring system 466 million years ago, which formed from the breakup of an asteroid.
September 20, 2024
Subscribe now! A daily update with Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Space
View All
Astronomy Essentials
View All
Earth
View All
Human World
View All
