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Sun
Sun news: M flare erupts as solar wind heads to Earth
Sun news, October 19, 2026: AR4551 fired a moderate flare. And a coronal hole’s fast solar wind could trigger auroras tomorrow.
October 19, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide. The Orionid meteor shower is just beginning to ramp up! Ready to catch some shooting stars? Here's when and where to look!
Earth
New dinosaur species identified from fossil stashed in drawer for a century
Researchers identified a new dinosaur species from a fossil on Isle of Wight in the UK. The carnivorous dino would have been as tall as a human.
October 18, 2026
Astronomy Essentials
Comet Halley is parent of 2 meteor showers
The famous comet Halley spawns both the October Orionid meteor shower and the May Eta Aquariid meteor shower. It'll return to the inner solar system in 2061.
October 18, 2026
Space
The MMX mission launches to Mars’ moons on Monday
The MMX mission launches October 19 to Mars’ moons Phobos and Deimos. It will collect a sample from Phobos and return it to Earth in 2031.
October 18, 2026
Astronomy Essentials
Inferior conjunction — Venus! October 23-24, 2026
Venus reaches inferior conjunction soon. It'll pass between Earth and the sun at 4 UTC on October 24. Then Venus emerges in the morning sky.
October 17, 2026
Space
Caves on the moon are target of new NASA mission
NASA wants to search for caves on the moon. A new mission named GIMLI will land and examine a volcanic pit — the Marius Hills Pit — in the vast, dark lunar lava plain known as Oceanus Procellarum.
October 16, 2026
Human World
No more leap seconds! Timekeeping is officially changing
The world’s timekeepers announced on Thursday that leap seconds will no longer be added to clocks starting in May 2027.
October 16, 2026
Earth
US winter weather outlook: What will El Niño bring?
NOAA's winter winter outlook says El Niño will bring a warm and wet winter for much of the U.S.
October 16, 2026
Space
2nd-generation planet: Was this world born around a dead star?
Astronomers might have found a new 2nd-generation planet orbiting a white dwarf star. It could also help answer a "cold case" mystery about the white dwarf.
October 16, 2026
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