Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...

Barnard’s Star is located just 6 light-years away from us. It is the closest single star to the Sun and the fourth closest ...

Uranus emits more energy than it gets from the sun, two new studies report — a discovery that contradicts findings from the venerable Voyager spacecraft. When Voyager 2 sped past Uranus on ...

Without question, the month of April belongs to Venus. This dazzling planet, which dominated the evening sky from last fall on through the winter, has now taken up residence in the morning sky.

The planet Venus will pass between the Earth and sun on Saturday in what's called an inferior conjunction. But don't plan on seeing the linkup – it's extremely difficult to spot without special ...

The Sun is constantly spewing solar wind, a stream of charged particles, into interplanetary space. Occasionally, it bursts ...