The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star.

Solar storms that fling magnetism across the solar system can knock out satellites, power grids, communication and navigation systems, and endanger astronauts in space. Scientists can observe these ...

One of the brightest stars in the night sky seems to be orbited by a planet like Jupiter. The news is sure to cheer fans of the Avatar series, which centers on a moon that orbits a fictional gas giant ...

Infrared Instrument, the team found strong clues of a mysterious gas giant in the Alpha Centauri star system, the nearest ...

One of the brightest stars in the night sky seems to be orbited by a planet like Jupiter. The news is sure to cheer fans of ...