Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

The wavelengths of radio light are so large that you can't capture a high-resolution image with a single dish. To capture an ...

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail from the outer edges of our solar system. Comet Lemmon ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be ...

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

Sir James Jeans, one of the world’s top mathematicians and an influential physicist and astronomer at the time, advanced his tidal hypothesis of planet formation in 1916. According to this theory, ...

A strange tilt in the outer reaches of the Kuiper Belt has scientists wondering if the solar system is hiding a potential ...

Space News on Major Missions and Probes. This past year has been anything but quiet for major space missions. New technology, ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...