A telescopic survey looking for trans-Neptunian objects has chanced across a 37 mile wide chunk of rock and ice that instead moves around the sun in the same orbit as Uranus, just further ahead of the planet.
Some natural phenomena need few words to explain why they’re fascinating. Eclipses, transits, and phases in astronomy tend to fall into that category.
What are some of the most intriguing and unexpected puzzles about the universe?
Lots of new scientific results in the past couple of weeks feed directly into the central questions of astrobiology – from the search for life, to the environment of interplanetary and interstellar space, and the grand cosmological terrain we find ourselves in.
Jupiter’s enigmatic moon Europa has long been thought to contain a huge ocean beneath its icy crust, but what is in that ocean and does it ever come to the surface?
Enceladus, Europa, Ganymede, Titan, Triton, Pluto, Eris…they may all have, or have had, large oceans of liquid water trapped beneath a frozen crust.
Over the years humans have deployed spacecraft into some wild, wacky, and extremely clever orbital configurations to better study the cosmos.
As the solar year ends, let's try to stop being so parochial
The Hubble Space Telescope has used direct imaging to detect the spin of a hot, young gas-giant planet—a first for astronomy
King Jove is one hell of a planet. It's also hell for a spacecraft
What's happening in the universe?
Scientists are finding liquid water, the cornerstone for life as we know it, in surprising nooks and crannies of the solar system. Following Wednesday's news that there seem to be hydrothermal vents churning away in the warm, alkaline seas inside Saturn's moon Enceladus, researchers announced airtight evidence yesterday that Jupiter's moon Ganymede also has a [...]
On October 9th, 2013, NASA’s Juno mission completed an Earth ‘flyby’ to gain a little extra velocity (a gravitational slingshot maneuver that steals a tiny bit of Earth’s momentum) to get it to Jupiter in 2016.
Laboratory research suggests that an unexpected layer of semimetallic, optically dark hydrogen lurks inside worlds like Jupiter and Saturn