Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Amazon is boldly going where few have gone before, launching its Project Kuiper satellites into orbit to challenge Elon ...

Asteroid 2024 YR4 has a 0.0017% chance of hitting Earth, but media reports too often ignore the unlikelihood of impact in reports of near-Earth asteroids, a Tucson astronomer says.

Apr. 29, 2025 — For decades, scientists believed Vesta, one of the largest objects in our solar system's asteroid belt, wasn't just an asteroid and eventually concluded it was more like a planet ...

Zooming in on Bennu samples A top-down view of one of the containers holding rocks and dust from asteroid Bennu, with hardware scale marked in centimeters. This image was captured using manual ...

Activities Model Solar System Bead Activity In this activity, you'll construct a scale model of the solar system using beads and string and will observe the relative distances of the planets, asteroid ...