Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how much could already be here.

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

Canadian astronomers have taken an extraordinary step in understanding how planets are born, using the James Webb Space ...

Astronomers may have discovered the fastest-moving planet system ever found, moving through our galaxy at speeds of at least ...

Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may not be the full picture.

In a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Astronomers mistook a car SpaceX blasted into space years ago as an asteroid. The brief mix-up highlights the sometimes ...

The PUNCH mission, which stands for Polarimeter to Unify the Corona and Heliosphere, could help experts better understand how ...