A portrait of the Milky Way that shows hydrogen gas in the galaxy's intergalactic void. (Image via Plank Observatory) There are some things in our universe so large that our minds just can't fully grasp their size. One such discovery was just made. Known as the BOSS Great Wall, a team of scientists found a total of 830 galaxies that have been pulled into four superclusters by gravity, according to a study that will appearin the journal Astronomy and Astrophysics....

The former ninth planet and its moons continue to unveil their secrets to scientists. In the newest revelation, researchers have discovered that Pluto is a “real world” of its own. “These five detailed papers completely transform our view of Pluto - revealing the former ‘astronomer’s planet’ to be a real world with diverse and active geology, exotic surface chemistry, a complex atmosphere, puzzling interaction with the sun and intriguing system of small moons,” said NASA New Horizons principal investigator Alan...

A pair of comets are set to whiz by Earth this week, one of which will make the closest pass of any comet in 246 years. The first one, named 252P/LINEAR, passed our planet at a distance of 3.3 million miles Monday morning, according to Smithsonian. Astronomers have followed this comet for years, but they can't say the same about the other one, which will fly even closer to our planet on Tuesday. The comet P/2016 BA14 is expected to...

Two comets will zoom past our planet in the third closest flyby in recorded history. But if you want to witness it, be sure to grab your telescopes. ...

NASA's new gravity map gives us a unique perspective, inside the red planet. ...

If you consider yourself an expert skywatcher, Wednesday's celestial event will test your skills. Early Wednesday morning, a sliver of the moon will slip into Earth's shadow during what is known as a penumbral lunar eclipse, according to Space.com. That means we won't see the red-shaded moon we normally see during a total lunar eclipse, but much of the world should still have the chance to see a piece of the moon become darkened during the event. The moon is...

After a closer look at our distant friend Pluto, new research shows that the planet has tropic and arctic regions and an atmosphere that fluctuates over time, which may allow lakes and rivers of liquid nitrogen to form at the surface. With the New Horizons spacecraft sending back less than half of the data it collected from the pass it took near Pluto around eight months ago, new findings, like that of the liquid on the icy planet’s surface, are...

NASA launched it's Cygnus Rocket late Tuesday Night, with a record breaking load of supplies for the International Space Station. ...

Scientists may have finally come up with an explanation for Ceres's bright spots. ...

Rima Ariadaeus photographed from Apollo 10. The crater south of the channel is known as Silberschlag. (NASA) Beneath the moon’s surface, empty tubes once filled with lava during an age when the moon actively shot fire into space have been found, scientists suggest. Teams have searched to obtain more information on these buried tubes, which are thought to be large and sturdy enough to hold entire cities, according to a Purdue University study. “Humans have been living in caves since...

Meteorologist Domenica Davis shares when and where you you can see this bright green comet. ...

Scientists knew comet BA14 would make a relatively close pass by Earth last week, but the space rock did have a surprise: it was seven times larger than they expected. The comet passed by Earth on March 22, only days after fellow comet 252P/LINEAR. Initially, BA14 was thought to be about half the size of 252P/LINEAR, which measured approximately 820 feet wide. However, after days of observing this hurtling chunk of space rock, NASA’s Goldstone Solar System Radar in California’s...