The arrows show the predicted motion of the planets over the next 10 years. The scale bar at the bottom left shows 20 astronomical units (AU), about equal to the radius of the orbit of Uranus.

WASHINGTON (AP) – Earth seems to have its first fuzzy photos of alien planets outside our solar system, images captured by two teams of astronomers.The pictures show four likely planets that ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might have looked like in its infancy are lost to time.

New telescope pictures prove the youngest known planet outside our solar system does in fact exist—and that planets can grow up fast—a new study says. By Rachel Kaufman June 12, 2010 ...

Twitter users have posted photos of Mars and Venus appearing close together in the night sky after the two planets were in conjunction. On Tuesday, Earth's two closest planetary neighbours nestled ...

Interestingly, a picture taken in 2008 didn’t show the planet: From our vantage point it was too close to the star to see. An Exoplanet's Baby Picture Photo by Kraus and Ireland.

A photograph of a solitary man walking along terraces in China, rust-red rivers in Alaska and a gargantuan western red cedar are among the winning images of the Earth Photo 2024 competition.

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only the second human survey of our solar system's innermost planet. The ...

The Hubble Space Telescope has photographed broad discs of gas and dust grains surrounding 15 newly formed stars, and astronomers say this is the strongest evidence yet that planets could exist bey… ...

From Washington, D.C., at a meeting of the American Astronomical Society. NOT QUITE A PLANET. Arrow indicates a brown dwarf, or failed star. The brown dwarf weighs about 65 times Jupiter’s mass.

The result of the process was the creation of Arrokoth-like objects that served as fundamental building blocks for larger planetesimals, dwarf planets, full-blown planets like Earth and eventually ...