Many view the development of fringe, alternative theories as a useless waste of time. But when they can be tested, it…
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Gravitational lenses arise when foreground masses and background light sources properly align. Einstein rings are rare, but crosses abound. Continue reading…
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The VENUS survey isn’t about planets at all, but about finding multiply lensed supernovae. The ambition? To save the expanding Universe.…
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The seeds of cosmic structure that were planted back during the Big Bang grew into the cosmic web we see today.…
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Travel half the distance to your destination, and there’s always another half to go. So how do you eventually arrive? That’s…
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In a galaxy less than 300 million years after the Big Bang, oxygen’s presence abounds. That’s expected; its absence would truly…
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In general relativity, matter and energy curve spacetime, which we experience as gravity. Why can’t there be an “antigravity” force? Continue…
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Particles are everywhere, including particles from space that stream through the human body. Here’s how they prove Einstein’s relativity. Continue reading…
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Perhaps the most remarkable fact about the Universe is simply that it, and everything in it, exists. But what’s the reason…
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While ice itself is slick, slippery, and difficult to navigate across under most circumstances, skaters easily glide across the ice. Continue…