Interstellar
Scientists Propose New, Faster Method of Interstellar Space Travel
The new concept for faster travel to other solar systems would see humanity take flight to the stars similar to how birds soar on Earth.
We Need to Intercept Our Next Interstellar Visitor to See If It's Artificial, Astronomers Say in New Study
A new study games out a mission to intercept an interstellar object in space and get a close-up look to see just what its made of.
Scientists Discover Unexplained Structures at Boundary to Interstellar Space
The heliosphere is the gateway to interstellar space, and it's a very weird place that we're just beginning to understand.
Alien-Hunting Astronomer Says There May Be a Second Interstellar Object on Earth in New Study
The U.S. military confirmed an interstellar meteor identified by Harvard astronomer Avi Loeb and student Amir Siraj, and now the pair say they've found another.
Rogue Planets In Our Galaxy Might Be Massive Alien Spaceships, Study Proposes
Scientists estimate there are billions of free-floating planets in our galaxy, and we should investigate them for signs of "cosmic hitchhikers," one scientist has proposed.
A Probe In Interstellar Space Is Sending Back Impossible Data, NASA Says
Voyager 1 is in "a high-radiation environment that no spacecraft have flown in before,” so a mystery like this isn't unexpected, the mission's project manager said.
An Interstellar Meteor Crashed to Earth. This Astronomer Wants to See If It’s Aliens.
The meteor that crashed into the Pacific was confirmed to be interstellar by secret government data. Harvard astronomer Avi Loeb wants to recover it.
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.