An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

The U.S. Postal Service has issued two new stamps featuring iconic images from NASA’s James Webb Space Telescope. The stamps, ...

In new images from JWST, we're finally seeing exquisite details of the flow and turbulence of the interstellar medium in the vicinity ... "We see layers like an onion," says astronomer Josh Peek of ...

The U.S. Postal Service has issued a new set of stamps celebrating the James Webb Space Telescope, the most powerful space ...

"We think every dense, dusty region that we see, and most of the ones we don't see, look like this on the inside — we just ...

Learn about the thermal light echo, observed by NASA, that causes intricate layers of interstellar gas and dust to emit an ...

Project Hyperion Design Competition: envisioning interstellar generation ships for humanity's future in space and sustainable ...

The shockwave Webb studied emerged from Cassiopeia A, now a neutron star, about 11,000 light-years from Earth. After the ...

"Chemical rockets that we use today, even with the extra speed boost from flying by planets, or from swinging by the sun for ...