Astronomers say the "unusual" energy bursts occurred every 20 minutes. There are theories as to what it could be, but the best guess is it's a slow spinning neutron star. Senior astronomer Seth ...

Three more objects were shot down by the U.S. military over the weekend after officials said they posed a threat to civilian airspace. The remarkable development came roughly one week after the U.S.

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

AutoMapper makes life easy, but has its limits. Learn how to implement a custom mapper to handle complex data structures or incompatible types. When working on applications, you will often need to ...

Earlier this month, astronomers were thrilled to spot an interstellar object — only the third of its kind ever observed — hurtling toward the center of the solar system on an extremely unusual ...

Astronomers have cataloged eight planets, 6,500 comets and more than 525,000 asteroids, but Oumuamua is one of a kind. The elongated space object, which was discovered speeding past the sun in 2017, ...

A version of this story appears in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. Apparently the lesson the military is learning is that if you look for unidentified ...

A team of researchers has presented the wild theory that an interstellar object might be hostile "alien technology" that could reach Earth in fall 2025. According to Live Science, the paper is ...