Category: astrophysics

What does a black hole look like up close?

A simulation of what a black hole with a disk of gas swirling around it would look, given the bizarre effects of its fierce gravity on the light from the disk. Credit: NASA’s Goddard Space Flight Center/Jeremy Schnittman

Via Bad Astronomy

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

M87 Black Hole Size Comparison

xkcd

Alt/title text:

“I think Voyager 1 would be just past the event horizon, but slightly less than halfway to the bright ring.”

More:

– Explain xkcd

– Focus on the First Event Horizon Telescope Results – The Astrophysical Journal Letters – IOPscience

– NASA news: Black Hole Image Makes History; NASA Telescopes Coordinated Observations

NSF Media resources

– Event Horizon Telescope (Official website)

Hayabusa2 hovering above asteroid Ryugu in October.

Credit: JAXA

Via

Nature: Japanese space probe drops explosive on asteroid Ryugu

Cannonball Pulsar

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

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]

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

ESA’s star mapping mission, Gaia, has shown our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond.

Via ESA: Gaia hints at our Galaxy’s turbulent life

Is our universe one of many?

Stanford-news five-part series on the String Theory Landscape, by Ker Than (illustrations by Eric Nyquist).

Sun’s three-dimensional magnetic field during one full solar rotation (top), and 

composite image generated from

photographs taken on the day of the total eclipse (bottom left) vs. the model’s predictions (bottom right).

Credits: Predictive Science Inc./Miloslav Druckmüller, Peter Aniol, Shadia Habbal/NASA Goddard, Joy Ng

Via NASA: