A comet so massive that it was initially misidentified as a dwarf planet is on its way in from the outer Solar System. There’s no need to be concerned; C/2014 UN271 (Bernardinelli-Bernstein), as the comet is known, will pass just … Read More
About 4.6 billion years ago, a giant shapeless cloud full of dust and gas condensed in one place due to the irresistible force of gravity. This is how the Moon, the Sun and all the planets in our system are … Read More
Our solar system was formed about 5 billion years ago from material left over from previous generations of stars, according to astronomers. Beyond that, however, things get a little murky. According to popular belief, a nearby supernova explosion compressed a … Read More
Your room can be instantly flooded with light with the flip of a switch. In fact, there’s no perceivable lag at all. Because emitted photons travel at a speed of 186,000 miles (300,000 kilometers) per second, light only takes 1/500,000th … Read More
A Harvard professor believes that we were visited by an alien object in 2017. In his upcoming book, Extraterrestrial: The First Sign of Intelligent Life Beyond Earth, theoretical physicist Avi Loeb lays out his theory about a peculiar-shaped object that entered … Read More
Invisible structures generated by gravitational interactions in the Solar System have created a network of “space superhighways,” astronomers have discovered. These channels allow fast travel of objects in space and can be used for the purpose of human space exploration … Read More