Lifeboat Foundation

How scientists plan to set up two black holes and a wormhole on an ordinary tabletop.

At a quantum level, the vanishingly tiny particles that make up the building blocks of everything don’t even have a set location, just a smear of possible positions dictated by complex rules of probability.

And theoretical physicist Sean Carroll is entirely happy with that. He says that the fact that tiny particles like electrons and photons don’t have one set place in the universe is evidence that there are many parallel universes.

Scientists have discovered the biggest explosion seen in the universe since the Big Bang, a new study reports. The explosion took place at the center of a galaxy that’s about 390 million light years from Earth.

“We’ve seen outbursts in the centers of galaxies before, but this one is really, really massive,” said study co-author Melanie Johnston-Hollitt of the International Centre for Radio Astronomy Research, in a statement. “And we don’t know why it’s so big.”

She added that the explosion happened very slowly, taking place over hundreds of millions of years. It also released five times more energy than the previous record holder.

Black holes are one of the most mysterious objects astronomer have encountered so far. And a new study proposes that black are nothing but just a holographic projection, with a new calculation of the entropy — or also known as disorder. These calculations suggest that these giant enigmas of the Universe being nothing but an optical illusion. Holograph hypothesis was first proposed by physicist Leonard Susskind back in the 1990s, according to this theory, mathematically speaking, the Universe requires just two dimensions — not three — for the laws of physics and gravity to work as they really should.

Scientists studying a distant galaxy cluster have discovered the biggest explosion seen in the Universe since the Big Bang.

Frequently used to change scenery in science fiction, parallel universes and the multiverse are indeed possible, but jumping from one to another might be a little tricky.

A proposal for building wormhole-connected black holes offers a way to probe the paradoxes of quantum information.

How can you see something that’s invisible? Well, with Euclid! This future ESA telescope will map the structure of the universe and teach us more about invisible dark matter and dark energy. Scientific coordinator of Euclid and Leiden astronomer Henk Hoekstra explains how this works.

Why do we assume that dark matter exists, if we have never seen it or even measured it? “We are orbiting the centre of our galaxy at 220 kilometres per second,” says Hoeksta. A bizarre speed, which fortunately we don’t notice. Still, something strange is going on. “Based on the number of stars in our Milky Way, the stars at the edge of the Milky Way should have a much lower speed, but they move as fast as the Sun. Yet these stars are not being slung into the universe. Something is holding them together.”

Continue reading “This is how ESA telescope Euclid is going to visualize dark matter” »

A number that sets the strength of electromagnetic interactions isn’t altered by the extreme gravity around the Milky Way’s supermassive black hole.