The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

Hubble images from December 2025 show interstellar object 3I/ATLAS releasing two narrow jets of material as it moves away from the Sun, raising questions about rotation and activity ...

Interstellar object 3I/ATLAS continues to display a Sun-facing anti-tail, confirmed by Hubble, Gemini and XMM-Newton observations, with explanations involving ice fragments and trailing objects.

Hoag's Object is a rare ring galaxy, very far from Earth. It has a central core of older, red stars surrounded by a ring of younger, blue stars. Ring galaxies may form from galaxy collisions, but Hoag ...

For over two months, astronomers have been closely following an interstellar object — dubbed 3I/ATLAS — as it screams through the solar system at a breakneck speed. The unusual visitor was only the ...

It might sound a little clinical, but object permanence is just one of many important developmental milestones you get to enjoy with your little one. In a nutshell, object permanence means your baby ...

An unidentified object was shot down 10 miles off the frozen coast of Alaska on Friday afternoon, US officials announced, but details about the object are scarce. US military pilots sent up to examine ...

A high-altitude object was shot down near Lake Huron on Sunday afternoon, marking the fourth time in just over a week that the US military has taken down objects in North American airspace. There’s no ...

If you’ve ever played peekaboo with your little one, you’ve helped them work on object permanence. Your baby is learning that people and objects exist even when they can’t see or hear them. Object ...

Two unidentified objects have been shot down over North America in the past two days in the aftermath of the Chinese surveillance balloon that was taken down over the Atlantic Ocean after crossing the ...