It would appear that the so-called “great instability” event that wreaked chaos among the planets, sending the gas giants careening through space until they settled into the orbits we know today, occurred between 60 and 100 million years after the birth of the solar system. This is the conclusion of some careful scientific detective work … Read more
Astronomers have long believed that the ice giants Uranus and Neptune are rich in frozen water. However, a new study suggests they may also have tons of methane ice. The findings could help solve a puzzle about how these icy worlds formed. Much about Uranus and Neptune remains unknown. These ice giant worlds have had … Read more
The solar system is an enormous place. Our cosmic neighborhood includes eight planets, around half a dozen dwarf planets, several hundred moons and millions of asteroids and comets, all spinning around the sun — and in many cases each other —at speeds of thousands of miles per hour, like a giant top. But where does … Read more
Nearly four years after NASA’s OSIRIS-Rex spacecraft collected a sample from an asteroid, scientists are finally revealing the intriguing composition of the space rock. Among them, the near-Earth asteroid, known as Bennu, contains a surprising reservoir of a mineral called magnesium phosphate. These bright-white particles sprinkled in a sea of Bennu’s dark rocks is a … Read more
Scientists have narrowed down the likely hiding place of the elusive “Planet Nine,” after ruling out more than three-quarters of the hypothetical world’s suspected orbital pathway. In a new study, the researchers — who have been looking for the planet for almost a decade — said they believe they could find the elusive world in … Read more
Scientists have spotted the brightest and fastest-growing quasar ever seen — a monster black hole that’s devouring a sun’s-worth of material every day. The brightly burning object, named J0529-4351, weighs between 17 billion and 19 billion solar masses and is located 12 billion light-years from Earth — meaning it dates to a time when the … Read more
In science fiction, people often find a way to move at the speed of light. But you might find yourself asking, could your body survive going so fast? What would happen to it? First, let’s assume that it is possible — though it is not — for a human to move at the speed of … Read more
Fear passed in front of the sun last week, and a NASA rover saw it fly. The Mars moon Phobos, whose name means “Fear” in ancient Greek, was caught on camera by the NASA Perseverance rover on Feb. 8. The potato-shaped moon was visible in front of the sun from Percy’s current perch in Jezero … Read more
When plotting sites for crewed lunar landings — ranging from the forthcoming Artemis missions to eventual lasting moon settlements — mission planners must account for tons of lunar parameters. For instance, the shape of the terrain could make or break a mission and a possible high volume of buried water could make one spot much … Read more
Very soon, a robot surgeon may begin its practice in orbit — and though it won’t quite be a metallic, humanoid machine wearing a white coat and holding a scalpel, its mission is fascinating nonetheless. On Tuesday (Jan. 30), scientists sent a slew of innovative experiments to the International Space Station (ISS) via Northrop Grumman’s … Read more
