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Space
Is cosmology at a tipping point? Is new physics ahead?
The standard model has done an exceptional job explaining cosmology. But there are problems. Will new observations be a tipping point toward new physics?
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
Sun
Sun news September 24: Chunk of sun-stuff coming toward 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 24, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide for September 2024. The moment of last quarter moon will fall today. Look for the moon high in the sky before dawn.
September 24, 2024
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
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
Space
Comet A3 is brightening. Will it be the comet of the year?
Comet A3 Tsuchinshan-ATLAS survived its rumored disintegration and may be the brightest comet of the year this September and October. Finder maps here.
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
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