Lifeboat Foundation

A spinning black hole could provide enough energy to power civilization for trillions of years — and create the biggest bomb known to the universe. Using the rotation of a black hole to supercharge electromagnetic waves could create massive amounts of energy or equally massive amounts of destruction. Kurzgesagt explains what it would take to harness a black hole and the potential risks of the process.

The Big Bang origin of the universe may sound incredible, but there’s solid evidence backing up the bold claim.

Eerie similarities unite vastly different scientific ideas in sometimes utterly surprising ways. One of these similarities may have allowed scientists to recreate the expanding universe—on a countertop.

Researchers accomplished their feat using Bose-Einstein condensates, which are collections of certain atoms held to the near coldest-possible temperatures. Bose-Einstein condensates let scientists see teeny quantum mechanical effects on a much larger scale, and have been used to do lots and lots of wild physics. These scientists hope they can use its quirks to model the behavior of the far grander cosmos.

“It’s hard to test theories of cosmology,” study author Gretchen Campbell, from the University of Maryland’s Joint Quantum Institute, told Gizmodo. “Maybe we can actually find a way to study some cosmological models on the laboratory scale.”

Continue reading “Ultra-Cold Atoms Recreate the Expanding Universe in Tabletop Experiment” »

An Earth-sized telescope will capture the unseeable.

Supernova simulations are resolving a 50-year-old mystery about stellar death throes.

Wormholes, or hypothetical tunnels through space-time that allow faster-than-light travel, could potentially leave dark, telltale imprints in the sky that might be seen with telescopes, a new study suggests.

These slightly bent, oblong wormhole “shadows” could be distinguished from the more circular patches left by black holes and, if detected, could show that the cosmic shortcuts first proposed by Albert Einstein more than a century ago are, in fact, real, one researcher says.

Wormholes are cosmic shortcuts, tunnels burrowing through hyperspace. Hop in one end, and you could emerge on the other side of the universe — a convenient method of hyperfast travel that’s become a trope of science fiction. [8 Ways You Can See Einstein’s Theory of Relativity in Real Life].

Continue reading “Wormholes Could Cast ‘Shadows’ That We Can Detect” »

This artist’s impression shows the light of several distant quasars piercing the northern half of the Fermi Bubbles, an outflow of gas expelled by the supermassive black hole in the centre of the Milky Way. The NASA/ESA Hubble Space Telescope probed the quasars’ light for information on the speed of the gas and whether the gas is moving toward or away from Earth. Based on the material’s speed, the research team estimated that the bubbles formed from an energetic event between 6 million and 9 million years ago.

The inset diagram at bottom left shows the measurement of gas moving toward and away from Earth, indicating the material is traveling at a high velocity.

Hubble also observed light from quasars that passed outside the northern bubble. The box at upper right reveals that the gas in one such quasar’s light path is not moving toward or away from Earth. This gas is in the disc of the Milky Way and does not share the same characteristics as the material probed inside the bubble.

X-ray observations have revealed a dozen stellar-mass black holes at the centre of the Galaxy, implying that there are thousands more to be found. The discovery confirms a fundamental prediction of stellar dynamics.

Atomic clocks are letting physicists tighten the lasso around elusive phenomena such as dark matter.