Some have cast doubt about the existence of black hole event horizons from which nothing, not even light, can escape the gravitational pull.

<blockquote>Related on TestTube <a href="http://testu.be/1N5likz">How Do We Know Black Holes Exist?</a> <a href="http://testu.be/1N5loIN">What Are Black Holes?</a> </blockquote>Read More:<a href="http://chandra.si.edu/press/16_releases/press_010516.html" target="_blank">NASA's Chandra Finds Supermassive Black Hole Burping Nearby</a> (Smithsonian) "Astronomers found this outburst in the supermassive black hole centered in the small galaxy NGC 5195. This companion galaxy is merging with a large spiral galaxy NGC 5194, also known as 'The Whirlpool.' Both of these galaxies are in the Messier 51 galaxy system, located about 26 million light years from Earth."<a href="http://news.discovery.com/space/galaxies/milky-way-has-burping-black-hole-neighbor-160105.htm" target="_blank">Milky Way Has Burping Black Hole Neighbor</a> (Discovery News) "A supermassive black hole at the center of a neighbor galaxy apparently "burped" after swallowing up nearby matter, a phenomenon that may have been instrumental in shaping the early universe, new research shows."

Can Anything Escape a Black Hole?

Astronomy

Space & Innovation

Do Stars Vanish Into a Black Hole or Crash Against a Surface? A New Test Answers

Why does it feel like Venus is suddenly everywhere in the news?

So Long Mars, Venus Is NASA’s Hottest New Thing

Venus is hell today, and we’ve got hard evidence to back up that idea.

How Venus Went From Dream to Deadly

There are plenty of reasons why Venus gets called Earth’s evil twin.

Why Venus Didn’t Turn Into Another Earth

The James Webb Space Telescope is FINALLY ready for launch.

NASA's James Webb Telescope Launch Is About to Make History

The James Webb Space Telescope is FINALLY ready for launch. It’s taken over two decades, thousands of international scientists, and billions of dollars to get to this point. 

NASA spent billions on the James Webb Space Telescope and now we’re going to launch it really far away.

Inside the James Webb Space Telescope’s Orbit Around the Sun

NASA spent billions on the James Webb Space Telescope and now we’re going to launch it really far away. But why do we need to send it so far? And what technologies are on board to support its success?

The ISS has been in orbit in one form or another for 23 years now, how many more does the station have?

What's NASA's Plan For Future Space Stations?

The future of the ISS is coming, so what's the plan? 

ISS astronauts aren’t just impressive people capable of performing complex tasks under pressure in a hostile environment and speaking Russian.

ISS Astronauts On Their Favorite Experiments In Space

We asked astronauts about what's new on the International Space Station. 


It’s the single most complex construction project in the history of humanity.

Here's How The ISS Was Built

This is the surprising history behind the ISS. 

Most of us are pretty familiar with the eight planets in our Solar System.

Is the Solar System Missing a Planet?

Betelgeuse, one of the brightest stars in the night sky, has begun to dramatically fade then brighten again for reasons we can’t quite pin down, leaving some people to wonder if it's about to explode.

Betelgeuse Is Destined to Explode as a Supernova…But When?

Betelgeuse, one of the brightest stars in the night sky, has begun to dramatically fade then brighten again for reasons we can’t quite pin down, leaving some people to wonder if it's about to explode. 

For millennia, people have used the stars to understand and organize the movement of time — here's how it works.

How the Universe Shapes Our Understanding of Time

Most people think of astronomy as a nighttime activity, but if you hate staying up late, you’re in luck!

The Rare Celestial Phenomena That Can Only Be Seen Before Nightfall

This rare celestial phenomena can only be seen before nightfall