Category: cosmology

A Close Look at Newborn Planets Reveals Hints …

A Close Look at Newborn Planets Reveals Hints of Infant Moons

Via Quanta Magazine

This is the first clear image of a planet caught in the act of formation. The star, PDS 70, is blacked out at the center of the image, while the planet, PDS 70b, is visible as a bright dot to its right. Astronomers just discovered a second newborn planet circling PDS 70.

Credit: 

ESO/A. Müller et al

What’s It Like When You Fall Into A Blac…

What’s It Like When You Fall Into A Black Hole?

From outside a black hole, all the infalling matter will emit light and always is visible, while nothing from behind the event horizon can get out. But if you were the one who fell into a black hole, what you’d see would be interesting and counterintuitive, and we know what it would actually look like.

Via Forbes – Ask Ethan

Gif info: General relativistic visualization of a supercomputer magneto-hydrodynamic simulation of a disk and jet around a black hole. The disk and jet were supercomputed by John Hawley at the University of Virginia. The general relativistic rendering was done with the Black Hole Flight Simulator.

On this day a century ago, General Relativity …

On this day a century ago, General Relativity was experimentally confirmed for the first time.

Image via NYT: 

The Eclipse That Made Einstein Famous

The story is nicely told in the BBC/HBO drama Einstein and Eddington” (2008).

Further reading:

Cannonball Pulsar

Cannonball Pulsar

NRAO press release: Astronomers Find “Cannonball Pulsar” Speeding Through Space

Cool, on April 10, we may see the first ever c…

Cool, on April 10, we may see the first ever close-up image of a black hole thanks to the Event Horizon Telescope.

Caption:

A simulated image shows the turbulent plasma in the extreme environment around a black hole.

Via NSF press note-> NSF press conference on first result from Event Horizon Telescope project

[High-res]

Atheism Is Inconsistent with the Scientific Me…

Atheism Is Inconsistent with the Scientific Method, Prizewinning Physicist Says:

I subscribe almost completely Marcelo Gleiser perspectives (and I would have subscribed the same 20 years ago). Watch out, the title is a clickbait, in the context that the phrase is said -in defense of agnosticism as the only non-religious position, it makes perfect sense. Good reading.

Gleiser is the first Latin American (Brazilian) to win the Templeton Prize.

Cool, the Bekenstein-Hawking entropy in a 50p …

Cool, the Bekenstein-Hawking entropy in a 50p coin. I want one!

Source: New Scientist – 

Stephen Hawking’s legacy will be honoured with a new 50p coin

Wired: Get Ready For Gravitational Waves All D…

Wired: Get Ready For Gravitational Waves All Day, Every Day

Black Holes, Quantum Information, and the Stru…

Black Holes, Quantum Information, and the Structure of Spacetime:

Readings.

Quantum to Cosmos

Quantum to Cosmos:

Worth a visit, no doubt.