The largest star ever known in the universe, hundreds of times more massive than our Sun
Hidden in the Large Magellanic Cloud, a nebula just outside the Milky Way, lies what may be the largest known star in the entire universe.
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Hidden in the Large Magellanic Cloud, a nebula just outside the Milky Way, lies what may be the largest known star in the entire universe.
Our Earth may one day have no Moon.
Illustrations of the Solar System do not accurately represent the size and motion of the planets in space.
2,500 years ago, at an abandoned ancient fortress in Italy, someone left a priceless and mysterious treasure for modern archaeologists.
PM 1-322 - a cosmic object that looks like a purple-blue ghostly eye staring straight at Earth - was discovered in 2005 but scientists have only now learned what it is.
After the oxygen disappears, a completely different Earth will be born. It is a world filled with methane, low CO2 levels and no ozone layer.
Millions of people in the Americas will be able to witness an interesting astronomical phenomenon on October 14, which is an annular solar eclipse (when the Moon is seen…
Helium is a simple element on the periodic table, named after the sun god. Yet modern theory and experiments on it have produced puzzlingly different results.
The Solar Orbiter spacecraft observed Mercury as it crossed the Sun, a rare moment.
NASA instruments have captured the moment part of the Sun appeared to be completely detached and caught in a polar vortex.
Pluto, this mysterious planet far from the Sun, has always been the focus of research for astronomers.
Not only does Earth have an extremely long tail where the Sun cannot shine, it also uses it to transform another celestial body.
It is the fifth planet from the Sun and the oldest of the planets.
By observing changes in the number of sunspots, scientists have discovered that solar activity shows periodic changes.
Some rocky planets like Earth are destroyed by the Sun.