An object up to dozens of times the mass of Jupiter flying through our solar system may have disrupted planetary orbits.

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

It's an interesting thought experiment; while Borisov and 'Oumuamua were smaller objects, a more massive rogue planet joining our solar system could generate orbital chaos. It could potentially ...

But the formation process of multi-planet systems, like our own Solar System, is still poorly understood. The best example object to study multi-planet system formation is a young star known as ...

The solar system is approximately 4.6 billion years old. Astronomers believe that roughly 100 million years into its existence, the planets first began to form in a rotating, flat cloud of gas ...

and sustaining temperature gradients of 25–100 K and pressure differences of 10 kPa against the vacuum of space can allow ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars ...

19, 2024 — Scientists have unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-Moon system and the broader solar ...

However, exactly how that happens for a multi-planet star system — like our solar system — is unknown. The paper, published today in The Astrophysical Journal Letters, details observations of ...

Astronomer Mike Brown, who was instrumental in Pluto's reclassification, is now searching for a potential ninth planet in the outer solar system. Evidence suggests the presence of a large, unseen body ...

Listen to Story This object could have been traveling at a speed of less than 6 kilometers per second It would have disrupted the orbits of the giant planets Such an event has a 1-in-100 chance of ...