Close encounters? SpaceX satellites spark Dutch UFO frenzy

A Dutch website set up to record UFO sightings was flooded early Saturday with reports after a "train of stars" was spotted crossing the Netherlands' skies, sparking fears of an alien invasion.

A sprightly explanation for UFO sightings?

In legend, sprites are trolls, elves and other spirits that dance high above our ozone layer. But scientists at Tel Aviv University have discovered that some very real "sprites" are zipping across the atmosphere as well, ...

Some UFOs may be explained as ball lighting

(PhysOrg.com) -- An Australian scientist studying photographs of fireballs, UFO sightings and a report of a strange green light in the sky suggests some UFOs may be ball lightning caused by fireball meteors.

New Zealand military releases UFO files

The New Zealand military released hundreds of previously classified reports Wednesday detailing claims of unidentified flying object (UFO) sightings and alien encounters.

Belgium UFO that puzzled NASA was polystyrene fake

An unidentified flying object photographed high in the Belgian sky that puzzled even NASA scientists turns out to have been a fake made out of foam, the man behind the hoax said Tuesday.

How black holes shape galaxies

Data from ESA's XMM-Newton X-ray observatory has revealed how supermassive black holes shape their host galaxies with powerful winds that sweep away interstellar matter.

New Russian missile failure sparks UFO frenzy

Russia's new nuclear-capable missile suffered another failed test launch, the defence ministry said Thursday, solving the mystery of a spectacular plume of white light that appeared over Norway.

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