Several telescopes used to observe the supernova SN Zwicky which was magnified nearly 25 times by a foreground galaxy acting as a lens. Credit: ESA/Hubble, L. Calçada ...
According to general relativity, gravity is the distortion of spacetime. Heavyweight cosmic entities like stars or galaxies ...
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
NASA’s Nancy Grace Roman Space Telescope will conduct a wide-area survey to study dark matter, dark energy, and the expansion of the universe across 11 billion light-years.
The Sun would be a far more powerful telescope than any humanity could create in the near future. But to use it, we need to get to 650 AU.
Its electronic gaze will sift through endless voids and millions of galaxies to hunt dark matter.
Astronomers had gazed into that piece of space many times. This time, however, the James Webb Space Telescope, equipped with ...
Galaxy clusters, the largest structures held together by gravity in the universe, may be far heavier than scientists once ...
NASA’s NEOWISE has allowed astronomers to get the best and most complete view of a star collapsing into a black hole ever recorded.
Supermassive black hole binaries form naturally when galaxies merge, but scientists have only confidently observed a very few of these systems that are widely separated. Black hole binaries that ...
Sending a mission to the solar gravitational lens (SGL) is the most effective way of actually directly imaging a potentially ...
Ripples in space-time from a pair of merging black holes have been recorded in unprecedented detail, enabling physicists to test predictions of general relativity ...
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