Two spacecraft are on course for 3I/ATLAS, a mysterious interstellar object that some believe could be an alien mothership.

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect starlight, and nobody does it better than LTT9779b. This world reflects 80 ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

A rare visitor from another star system has been spotted. It's the interstellar comet 3I/ATLAS, and it was detected on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System, or ATLAS ...

Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to detect with our current single-location warning system, according to a new ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

But it is hard to account for why the sun’s spin is aligned the way it is relative to the planets. Two teams of astronomers have just announced a new explanation: a hypothetical massive planet in the ...

Not all solar power is created equal. The Ivanpah facility in the middle of the desert has generated power using mirrors for ...