Spiral galaxies look pretty and orderly, with most of their stars and gas confined to a carefully arranged disk in swirling spiral arms. But there is much more to a galaxy than we can see, as a new image of invisible phenomena skillfully demonstrates. The image shows a galaxy called …
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It has been orbiting and observing Jupiter and its moons for four years, but the scientific spacecraft Juno still has some surprises to share. For the first time, he has photographed the north pole of one of the strangest objects in the Solar System, Jupiter Ganymede’s moon. There, the constant …
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If we’re going to take long-term space travel seriously, it will be essential to be able to repair injuries, and that is no longer a distant concept. A cosmonaut aboard the International Space Station has just designed human cartilage in microgravity from space for the first time. Bioprinters that can …
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Black holes don’t shine; in fact, they are famous for doing the opposite. But if they are actively devouring material from the space around them, that material can burn like a trillion X-ray suns. And for the first time, astronomers have now seen that mysteriously extinguished fire, before gradually returning …
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