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See brightest star, Sirius, in your morning sky
Out late at night or before dawn? Look for the sky's brightest star, Sirius, a brilliant beauty. You'll know it's Sirius if you see Orion's Belt pointing to it.
October 20, 2026
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
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
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
Inferior conjunction — Venus! October 23-24, 2026
Venus reaches inferior conjunction — passing between Earth and the sun — at 4 UTC on October 24, 2026. Afterwards, it emerges into the eastern sky before dawn.
October 17, 2026
Caves on the moon are target of new NASA mission
NASA is searching for caves on the moon. A new mission, GIMLI, will land near the volcanic Marius Hills Pit to look for a subsurface lava tube. Will it find one?
October 16, 2026
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
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
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
Space is getting crowded. Here’s the latest satellite report
ESA reports on the state of low-Earth orbit. The number of satellites in orbit is skyrocketing, along with the chance for collisions and on-ground casualties.
October 16, 2026
