Two meteor showers are raining down this week with peak views starting now

The 24-hour day is not fixed but slowly stretching, and in the dinosaurs' time it was shorter: the Moon's pull is gently braking Earth's spin, so a day back then ran about 23.5 hours, and far shorter deeper in the past

Earth’s days are creeping longer as the Moon drifts away, reshaping the planet’s rhythm that once measured a 23.5‑hour day in the dinosaur era.

Prolonged stretching reorganizes tissue scaffolds and uncages cell nuclei

Research identifies a mechanical process where prolonged stretching forces the reorganization of keratin networks, leading to the uncaging of cell nuclei.

Did Scientists Just Detect the First Known ‘Exo-Moon’?

Not round, not an ellipse: NASA’s gravity-based model reveals Earth’s true geoid shape

NASA gravity data updates the visual representation of Earth, challenging long-held assumptions about our planet's geometric form.

Curiosity Mars rover inspects cracked wheel photo of the day for July 27, 2026

NASA's Curiosity rover is currently inspecting visible damage on its wheels after operating on the Martian surface for 14 years.

Hubble shows star formation in Andromeda galaxy is winding down

NASA's Hubble telescope data reveals that the Andromeda Galaxy, located 2.5 million light-years away, is experiencing a decline in star formation.