Scientific American8h
How Many Planets Are in the Solar System?
The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
A rare planetary alignment is lighting up the night sky—here’s how to see it
Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...
Space.com3d
An interstellar visitor may have changed the course of 4 solar system planets, study suggests
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
Science Daily4d
Solar System News
15, 2025 — New observational data and simulation models have confirmed a new type of planet ... the Earth-Moon system. Both systems include a moon that is a large fraction of the size ...
NASA spacecraft flew by distant world. It saw unprecedented volcanism.
On Dec. 27, 2024, NASA's Juno spacecraft swooped by the volcanic world Io. It witnessed a giant eruption.
Space on MSN7d
Earth's recent asteroid visitor might've been a piece of the moon
2024 PT5 is the second near-Earth asteroid scientists suspect was ejected from the moon's surface, the first being 469219 ...
Earth’s recent ‘mini-moon’ may be an actual piece of the moon, astronomers say
An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.
earth1d
Volcanic eruption on Jupiter's moon Io covers area larger than Lake Superior
NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...