The remains of 166 people part of a Celestis Memorial Spaceflight are presumed lost after The Exploration Company's "Mission Possible" capsule presumably crashes into Pacific Ocean.

The fireball was visible from several states including Pennsylvania, New Jersey and Massachusetts.

Auroras may be visible from Alaska to Washington as a giant hole in the sun's atmosphere fuels geomagnetic storms with a high-speed solar wind.

V462 Lupi will soon vanish from the night sky, but before it does, the dark skies around the new moon present a perfect time to head away from city lights to hunt down the light from this ancient nova.

A walk in the desert and a curious discovery could have revealed that the secrets of alien life grow in the harshest conditions on Earth in the form of lichen.

After more than 24 hours on orbit, the the private astronaut crew of Axiom-4 has caught up to the International Space Station, docked and been welcomed aboard for their two-week mission.