A story of survival is unfolding at the outer reaches of our galaxy, and NASA's Hubble Space Telescope is witnessing the saga ...

Avi Loeb's controversial claim that a recent fireball resulted from an interstellar object is taking a hammering.

Picture in your mind a big parking lot with 131 million cars on it. Now imagine that they are spread out over the entire Earth’s inhabited areas. Although still a large number, it is ...

These peaks are inconsistent with inward radial diffusion from a source beyond geostationary orbit. Instead ... low particle density where the phase velocity of the waves becomes large.

Hubble Space TelescopeHomeNASA's Hubble Sees… Hubble Space Telescope Hubble HomeOverviewAbout HubbleThe History of ...

the orbital velocity on approach needs to be quite close to Jupiter’s. The reason we can put missions into orbit around Mars and Venus, or even land on their surfaces, relatively quickly ...

It sounds like something out of a science-fiction movie. For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is more than just a ...

Over the past four years, SpaceX has become a globe-straddling internet company as well as a rocket-maker. Its Starlink service uses what would, a few years ago, have been an unthinkably large number ...

Since V404 Cygni already has a companion – a star on a close, 6.5-day orbit, on which the central black hole is leisurely ...

A propulsion issue discovered after the satellite was launched took some years off its orbit lifespan. It was also the second satellite launched as part of Intelesat’s EpicNG platform.