Astronomers first became aware of WISEA J153429.75-104303.3 about three years ago, but the details have only now started appearing in print.
A Failed Star With Unexpected Properties, Mars' Radiation & More Space News
We tend to think of planets and stars as very different things, but the border between very large planets and very small stars is surprisingly hazy. Astronomers have spotted about 2,000 so-called “brown dwarfs,” objects that are dozens of times larger than Jupiter, but not quite large enough to kick off a sustained fusion reaction. Now, we’re discovered one that could teach us about the dawn of the universe — here’s everything we know about it, plus all the latest news from space.