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Spaceflight
Reflect Orbital says it will deliver sunlight on demand
The startup company Reflect Orbital has proposed putting hundreds of thousands of satellites with mirrors in space to illuminate areas of Earth at night.
October 17, 2025
Earth
Sun
Sun news: Super-active AR4246 will depart soon
Sun news for October 17, 2025: Prolific very active sunspot region AR4246 is soon to depart to the far side of our sun. Today it was the only flare producer.
Astronomy Essentials
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide. Tomorrow morning, the thin crescent moon hangs between Regulus and the horizon. And, the Orionid meteor shower peaks soon.
October 17, 2025
Space
New evidence for ocean on Mars found in ancient rivers
Researchers have discovered further evidence for an ancient ocean on Mars, in the form of backwater deposits and ridges left by rivers billions of years ago.
October 16, 2025
Earth
Not all bats are bloodsuckers! More on this Halloween icon
Bats might be spooky, but they pollinate flowers, control insect pests and have inspired scientists to improve human lives in many ways.
October 16, 2025
Earth
New dinosaur highway dig reveals record-breaking footprints
A new round of excavations at the U.K.'s 'dinosaur highway' has revealed hundreds more dinosaur footprints and a record-breaking sauropod trackway.
October 15, 2025
Astronomy Essentials
Clusters Nebulae Galaxies
Orionid meteor shower 2025: All you need to know
In 2025, the Orionid meteor shower should rain down its greatest number of meteors on October 20-21. The moon won't interfere in 2025.
October 15, 2025
Earth
Blackwater photography reveals new fish-anemone interactions
Scientists and divers using blackwater photography have documented some juvenile fish carrying, or swimming with, larval anemones and polyps.
October 15, 2025
Earth
Earth’s magnetic field has a weak spot that’s growing
Earth's magnetic field has a growing weak spot ... And there are other areas where the magnetic field is stronger than average. Read more about it here.
October 14, 2025
Space
Gravity vs magnetism: Star-forming interaction revealed
For the 1st time, scientists have traced how magnetic fields in star-forming clouds interact with gravity to control the birth of new stars.
October 14, 2025
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