YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see ...

Heavy, black smoke billowed out of both ends of the Green River Tunnel along Interstate 80 after a fatal multivehicle pileup ...

While radio jets are relatively common in the nearby Universe, they have been elusive in the early Universe. This is partly ...

Fire and rescue crews at an explosive tunnel collision outside Green River could not enter the tunnel for hours Friday after ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...