Interstellar
Secret Government Info Confirms First Known Interstellar Object on Earth, Scientists Say
A small meteor that hit Earth in 2014 was from another star system, and may have left interstellar debris on the seafloor.
Scientists Want to Send Tardigrades to Distant Stars With Massive Lasers
Launching a tiny spacecraft with a directed energy array on Earth would momentarily consume 1/10th of the entire U.S. power grid.
A Strange Interstellar Comet Discovery Hints at a Solar System Like Our Own
The "unexpected finding" of nickel gas around interstellar comet 21/Borisov lines up with "astonishing" new observations of local comets, scientists say.
The Farthest Spacecraft from Earth Picks Up an Unexpected New Signal
Voyager 1 has likely made the first continuous measurement of the density of matter in interstellar space.
Watch a Harvard Professor Explain Why He Thinks Aliens Visited Us Already
Most scientists think the first interstellar visitor to our solar system has a natural explanation. Harvard professor Avi Loeb makes the case for an alien origin.
The Mind-Boggling Theory That We Could Be Descended from Martians
Amir Siraj, a student studying astrophysics at Harvard University, talks about the potential spread of life throughout the Milky Way in a VICE News interview.
Scientists Determine How an Outer Space Object Got Shaped Like a Blunt
ʻOumuamua, the first interstellar object discovered in our solar system, was whittled into its elongated shape by stellar tides, scientists say.
Scientists Are Rapidly Finding Weird Materials Older Than the Solar System on Earth
First, scientists found stardust crystals dating back seven billion years. Just weeks later, another team has reported finding more “presolar” compounds in an unexpected place.
Physicist Proposes Turning the Sun Into a Gigantic Engine
“That’s the new result of the paper: What exactly is possible if you have a Dyson sphere and you want to use it to drive a jet to push a star around?”
NASA Has Found a Weird, Unexplained Boundary in Interstellar Space
Voyager 2 passed through the borderland between the Sun and interstellar space and found something new and puzzling that Voyager 1 missed.
NASA Captured Stunning New Images of the Interstellar Comet in Our Solar System
Unlike ʻOumuamua, the first interstellar object ever detected, comet 2I/Borisov is radiant and gassy.
Sorry, That Blunt-Shaped Interstellar Object Was Not an Alien Spaceship
While an alien explanation for 'Omuamua can't be ruled out, a new study concludes it is more likely natural in origin.