Astronomers have discovered water vapor in the atmosphere of a super-Earth exoplanet orbiting within its star’s habitable zone. The discovery suggests that liquid water could exist on the rocky world’s surface, possibly forming a global ocean. The discovery, made with … Read More
For the first time, astronomers have discovered evidence for a giant planet orbiting a tiny, dead white dwarf star. And, surprisingly, the Neptune-sized planet is more than four times the diameter of the Earth-sized star it orbits. “This star has … Read More
If you’re swimming in a large volume of water, i’s difficult to judge the properties of distant floating objects with exacting precision, and the same is true for our star system as it swirls around the galaxy. This is perhaps … Read More
Our observable Universe is the region of space that we can see today — all points in space where light has had enough time to reach us if it left at the Big Bang (13.7 billion years ago) or later. … Read More
The Andromeda Galaxy is a giant swirl of around a trillion stars just down the street from the Milky Way. But billions of years from now, it will collide with our home galaxy. On a clear night away from city … Read More
Advanced Civilizations A Harvard scientist has a fascinating theory about how our Universe was formed: it was created in a laboratory by a higher “class” of lifeform. Avi Loeb, bestselling author and former chair of Harvard’s astronomy department, wrote an … Read More