Topic: astrophysics

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How NASA’s Parker Solar Probe Will Touch the Sun

In the early hours of August 12, 2018, NASA's Parker Solar Probe launched from Florida's Cape Canaveral Air Force Station, beginning a historic seven-year journey to 'touch the sun.' From The New York Times: The P...

Why Isn’t Pluto A Planet?

Pluto was discovered by Clyde Tombaugh in 1930 and was originally considered to be the ninth planet from the Sun. After 1992, its status as a planet was questioned following the discovery of several objects of similar...

Building the Giant Magellan Telescope, the world’s largest telescope

Underneath the University of Arizona’s football stadium are the beginnings of the Giant Magellan Telescope, set to be the largest optical telescope in the world. The Richard F. Caris Mirror Laboratory is the only plac...

Stephen Hawking explains black holes in 90 seconds

What are black holes? What's happening inside of them? You can't tell from the outside... but could you travel through one to find out? From his BBC Reith Lecture and animated by Aardman Studios for BBCRadio4, British...

How to Find a Galaxy

How do you find a galaxy? How do you find a thousand galaxies? Astrophysicist Dr. Margaret Geller is a galaxy mapping pioneer. She and her colleagues studied the spatial distribution of galaxies in our universe by sur...

A physical demonstration of gravitational waves

Start with the classic lycra space-time warping demo, add in news of LIGO and The First Observation of Gravitational Waves, then mix it with a drill. In this Ultimate Gravitational Waves Explanation, Steve Mould creat...

France A. Córdova – Nautilus’ Spark of Science

France A. Córdova, the director of the National Science Foundation of the United States, former NASA Chief Scientist, and former Chancellor of the University of California, Riverside, had to petition to get into her h...

One Year on Earth – Seen From 1 Million Miles

Every two hours, NASA's Epic camera on NOAA's DSCOVR satellite captures a set of images from its L1 (Lagrange point 1) orbit. The images of Earth's sunlit side are taken in ten different wavelengths. The first color-a...

Gravitational Waves Explained Using Stick Figures

How are gravitational waves made? In this episode of MinutePhysics, Henry Reich draws up a series of other wave creating scenarios -- water waves, air pressure waves, and radio waves -- to help explain gravitational w...

How Far Can We Go? Limits of Humanity – Kurzgesagt

Is there a border we will never cross? Are there places we will never be able to reach, no matter how hard we try? It turns out there are. Even with science fiction technology, we are trapped in our pocket of the univ...

Why every picture of a black hole is an illustration – Vox

No one has ever seen a black hole. There have been illustrations and computer simulations, but not even astronomers have seen a black hole... yet. In the spring of 2017, we might see... something. As a part of...

Understanding the Magnetic Sun – NASA Goddard

This dynamic computer model of our sun reveals the behavior of its invisible magnetic structure. The pink and green indicate open magnetic field lines that reach out into space, while the "closed" white lines loop bac...

How do we know what stars are made of?

How do astronomers know what stars are made of when those stars are light years away from Earth? These demonstrations by Dr Francisco Diego reveal the colors of light that are produced from sodium chloride, rubidium c...

LIGO & The First Observation of Gravitational Waves – CalTech

On September 14, 2015 at 5:51am ET, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected ripples in the fabric of spacetime. One hundred years after Albert Einstein predicted the existence of gravit...

Evidence of a Ninth Planet

Thanks to mathematical modeling and computer simulations by CalTech researchers Konstantin Batygin and Mike Brown, we now have strong evidence that there's a large planet -- about 10x Earth's size -- orbiting in an ex...

DISHDANCE, a time lapse for The Skyglow Project

Created for The Skyglow Project, an astrophotography book and time lapse series by Gavin Heffernan and Harun Mehmedinovic, DISHDANCE observes massive radio telescopes during the day and night. The project also capture...

Explore the Science Behind Fireworks—and the Galaxy

When you watch fireworks burst with color, you're seeing examples of how stars and galaxies work: Blues from copper, yellows from sodium, bright whites from aluminum, barium greens, and reds made from strontium... The...

Taking the very first picture of a black hole – Black Hole Hunters

From the excellent Out There series from The New York Times: Black Hole Hunters, the story of the Earth-sized array of observation stations synchronized to capture Sagittarius A*, the astronomical radio source at the ...

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