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Space
Europa Clipper will explore Jupiter’s ocean moon
Europa Clipper is NASA's mission to explore the icy, ocean moon of Jupiter. Scientists want to know if life could exist in Europa's ocean.
October 9, 2024
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide for October 2024. Look for the moon among the stars of the Teapot. You will be gazing toward the center of the Milky Way.
Constellations
Celestial ocean: The watery constellations in the autumn sky
In Northern Hemisphere autumn (Southern Hemisphere spring), you can see some constellations representing a "celestial ocean in the sky" to early stargazers.
October 9, 2024
Astronomy Essentials
Brightest Stars
Alpheratz belongs to Andromeda, but is part of the Great Square
Alpheratz appears to our eyes as a single star but it is actually a close binary star system. Many stargazers use it to locate the Andromeda galaxy.
October 9, 2024
Earth
Sun
Sun news October 9: Another X flare! Auroras to come?
Sun news update for October 9, 2024. AR3848 erupted with a bang, producing an X1.8 flare. It caused a solar particle storm and a CME that could bring auroras.
October 9, 2024
Earth
‘Life-threatening’ Hurricane Milton headed for Florida
Hurricane Milton regained Category 5 strength on Wednesday, October 8, 2024. The hurricane should make landfall on Wednesday night, perhaps south of Tampa Bay.
October 9, 2024
Space
Is this white dwarf exoplanet a preview of Earth’s fate?
Astronomers have discovered an Earth-sized planet orbiting a white dwarf star. Does this white dwarf exoplanet mean Earth could survive the death of the sun?
October 8, 2024
Astronomy Essentials
Double stars: How to find, observe and enjoy them
This observing guide gives you a range of choices for seeing double stars with your eyes alone, with binoculars or with a telescope. And some are easy to find.
October 8, 2024
Space
Hera mission: Keeping Earth safe from an asteroid collision
The Hera mission successfully launched on October 7, 2024. Hera will explore Dimorphos, which DART hit as a test of planetary defense in 2022.
October 8, 2024
Earth
Anteaters are vacuum-like animals: Lifeform of the week
Anteaters are known for their vacuum-like feeding habits, using their long trunks and tongues to consume up to 35,000 ants and termites daily.
October 7, 2024
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