Originally, the hypothesis was that Theia gave the Earth a glancing blow, and the proto-Earth and Theia lost pieces ending up as one or two moons that eventually formed the Moon. It was thought that a ...

The ultimate purpose of PUNCH is to use its four instruments — three wide-field imagers (WFI) and a near-field imager (NFI) — ...

A rare 'smiley face' triple conjunction is coming to Earth's morning skies on April 25, when Venus, Saturn and the crescent ...

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

In a breakthrough that could reshape future lunar exploration, NASA researchers have confirmed that the solar wind—a stream ...

Skywatchers worldwide are in for a charming cosmic display before the sun rises next week as three celestial bodies will ...

Scientists have hypothesized since the 1960s that the sun is a source of ingredients that form water on the moon. When a ...