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Matrix Multiplication Inches Closer to Mythic Goal
A recent paper set the fastest record for multiplying two matrices. But it also marks the end of the line for a method researchers have relied on for decades to make improvements.
New Kind of Space Explosion Reveals the Birth of a Black Hole
A supernova-like explosion dubbed the Camel appears to be the result of a newborn black hole eating a star from the inside out.
Imaginary Numbers May Be Essential for Describing Reality
A new thought experiment indicates that quantum mechanics doesn’t work without strange numbers that turn negative when squared.
Cloud-Making Aerosol Could Devastate Polar Sea Ice
An overlooked but powerful driver of cloud formation could accelerate the loss of polar sea ice.
Growing Inventory of Black Holes Offers a Radical Probe of the Cosmos
One black hole is nice, but astrophysicists can do a lot more science with 50 of them.
In Violation of Einstein, Black Holes Might Have ‘Hair’
A new study shows that extreme black holes could break the famous “no-hair” theorem, and in a way that we could detect.
Undergraduates Hunt for Special Tetrahedra That Fit Together
A group of MIT undergraduates is searching for tetrahedra that tile space, the latest effort in a millennia-long inquiry. They’ve already made a new discovery.
Some Proteins Change Their Folds to Perform Different Jobs
Unusual proteins that can quickly fold into different shapes provide cells with a novel regulatory mechanism.