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James Webb telescope could have spotted controversial 'dark stars' in the far universeUsing observations from the James Webb Space Telescope, astrophysicists have spotted what they say is compelling evidence of a new type of cosmic object called a 'dark star.'
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Scientists measure the 'natal kick' that sent a baby black hole careening through space for the first timeTwo black holes merged together 2.4 billion light years away from Earth, and scientists have just figured out how fast the newborn ricocheted, and in which direction.
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The universe may start dying in just 10 billion years, alarming new model predictsA surprising new paper suggests that the universe's expected lifespan is just 33 billion years, and that the cosmos will start dying in less than a third of that time. However, this is only one possible theory.
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Did light exist at the beginning of the universe?Was it dark after the Big Bang, or did light shine immediately?
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28 gorgeous nebula photos that capture the beauty of the universeNebulas — colorful clouds of expanding gas and dust — have long captivated stargazers with their beauty. Here are 28 of the most stunning nebulas in the universe.
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Does light lose energy as it crosses the universe?The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on its journey toward Earth?
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When will the universe die?The universe has been expanding for 13.8 billion years, but this may not go on forever. According to some theories, we may be accelerating toward a cataclysmic end.
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The universe may be dying much faster than we thoughtAstrophysicists have proposed a new theoretical maximum lifespan for the universe, which suggests that dead stars are decaying much faster than previously thought. The estimate of stellar remnant decay is based on Stephen Hawking's famous black hole radiation theory.
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How many planets are in the universe?We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe.
