Gravitation
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Tech
Finally, there is evidence of low frequency gravitational waves
The NANOGrav team can essentially turn the Milky Way into a giant gravitational wave detector by measuring signals from these…
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Tech
Why this universe? Maybe it’s not special – just possible
Cosmologists have spent decades of striving to understand why our universe is such a beautiful vanilla color. Not only is…
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Tech
Physics smashing spacecraft into an asteroid
There are a few things to note. First, after the collision, the DART is moving backwards, because it bounces. Since…
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Tech
Do stem cells grow better in space? Dhruv Sareen’s own stem cells orbiting Earth on the International Space Station
Researcher Dhruv Sareen’s stem cells are currently orbiting the Earth. Mission? To test if they grow better in zero gravity.…
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Tech
A new tool to search for dark matter finds nothing
Physicists are thinking of clever ways to exploit the extremely high sensitivity of gravitational wave detectors like LIGO. But they…
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Tech
Symmetry reveals clues to three-dimensional universe
We already know about gravity since Newton’s hypothetical encounter with the apple, but we’re still struggling to understand it. While…
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Tech
What happens if a space elevator fails?
So what if instead of launching a chemical rocket to the top, your object could go up on a cable…
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Tech
Astronomers discover a strange galaxy with no dark matter
Three years ago, Filippo Fraternali and his colleagues discovered half a dozen mysterious diffuse galaxies, which look like cities full…
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Tech
Physics of the James Webb . Space Telescope
There’s actually another good reason to use infrared light for JWST: It’s very difficult to get an unobstructed view of…
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Tech
Messy world. Idealization Makes Physics Simple
Sometimes the universe too complicated to analyze. Damn, if you take a tennis ball and throw it across the room,…
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