"The sand erosion at Pariva beach … [is] a humanitarian crisis that highlights PNG's vulnerability ... trapping the sun's heat and warming the planet. Glaciers and ice caps then start to melt ...

The orbit Venus takes around the sun results in an inferior conjunction as it transitions from appearing in the evening sky to the morning sky.

Even if the specific monthly peak of the cycle has passed, it doesn't mean solar activity is over. Strong solar activity ...

"The glare from the sun makes it really, really difficult to see," said Michelle Nichols with Chicago's Adler Planetarium. Since Venus and Mercury are "inferior" planets compared with the Earth ...

Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. But don't plan on seeing ...

A partial solar eclipse on March 29 will be visible from parts of North America. Here's how to safely view the cosmic event, even if you can't be there in person.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

The planets closely orbit Barnard’s Star, zipping around their stellar host in a matter of days, compared with the year it takes Earth to complete one orbit around the sun. The outermost planet ...