Could the Universe loop around on itself, and might you come back out the other side? “For once you have tasted flight you will walk the earth with your eyes turned […]

For the central 8,000 light years, there are practically no tracers of new stars. What gives? “This suggests a lack of Cepheids in the inner 2.5 kpc region of the Galactic […]

The force of empty space isn’t always zero. Here’s how an electromagnetic experiment might be the key to dark energy. “Another very good test some readers may want to look up… […]

While there are presently more than ~10²³ stars in the Universe shining today, each one of them is fated to live only for a finite amount of time. While more […]

The infrared reveals stars — and a surprising population of failed stars — we’ve never seen before. “…innumerable stars, thousands of double and multiple systems, clusters in one blaze with their tens of thousands of […]

And what, exactly, is the significance of a tetraquark? “I found I could say things with color and shapes that I couldn’t say any other way — things I had no words […]

An awful op-ed about how science is no different than other disciplines misses some fundamental facts. “Philosophy of science is about as useful to scientists as ornithology is to birds.” […]

And are likely due to subsurface water, geysers and an incredible process. “Have you entered the springs of the sea? Or have you walked in search of the depths?” –Job […]