Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be the interior of a black hole that formed in some larger cosmos. The notion ...

Ever walked into a restaurant and felt like something was just off, or maybe too perfect? Maybe your order arrived at ...

In late 2025, billionaire Thomas Kaplan said he was considering fractionalizing the world-renowned Leiden Collection and launching it as an IPO.