The Earth's movement is primarily directed towards the star Lambda Herculis at an approximate speed of 45,000 mph (72,000 km/h). This velocity, while significant, would require approximately 5.5 ...

The Gaia space telescope has measured the acceleration of the Solar System when it orbits the center of our Milky Way galaxy. The Solar System motion relative to the stars agrees with the results by ...

Astronomers are studying 3I/ATLAS, a rare interstellar comet nearing the Sun. Despite viral claims calling it an 'alien ...

What Matters Now • The extraordinary discovery of the “twilight” asteroid 2025 SC79, detected by the Dark Energy Camera, ...

Researchers have achieved a breakthrough in solar physics by providing the first direct evidence of small-scale torsional ...

In early July 2025, a telescope system designed to spot potential threats to Earth made a surprising discovery. The Asteroid Terrestrial-impact Last Alert System, better known as ATLAS, detected a ...

The Milky Way and Andromeda galaxies are predicted to collide and merge between 3.9 and 5.6 billion years from now, based on observed relative motion. The merger process will involve multiple ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than previous interstellar visitors.

It is a question that feels like it should have a straightforward answer: how many planets are there in our solar system? Since Pluto was relegated back down to dwarf planet status, almost everyone ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...

Have you ever wondered just how big space really is? It’s huge. In fact, it’s astronomical! The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on ...