At about 50,000 times the mass of the Sun, this intermediate-mass black hole skirts the line between shrimp and giant.

It’s not an April Fools’ gag. Scientists just confirmed that urea, a main component of human pee, can be used as a valuable additive for 3D-printed structures made from lunar soil.

A new method for hunting minor planets uncovered 139 new small and distant worlds. And the novel technique could even help resolve the mystery of Planet Nine.

There’s a giant blank spot in researchers’ ever-growing map of the solar system. Over the last two decades, a veritable fleet of probes has measured quakes on Mars, scrutinized the grooves in Saturn’s rings, observed jet streams on Jupiter, and heard the heartbeat of Pluto. But in terms of up-close-and-personal exploration, our image of Uranus hasn’t advanced substantially beyond the featureless blue beachball captured by Voyager 2’s vintage instruments in 1986.

It had a big lunch.

It’s been several decades since NASA’s Voyager 2 spacecraft reached the chilly planet Uranus. The probe cruised past the frigid world at a distance of around 50,000 miles, sending back a wealth of data for scientists to dig through. Now, 34 years after it visited Uranus, the data that Voyager 2 sent back has revealed something entirely new.

Not a single system of three moving objects, big or small, planets or black holes, can escape the direction of time.

New analyses of images from NASA’s New Horizons spacecraft suggest that Pluto may have had a sea beneath its icy shell for roughly 4.5 billion years.

Using over 18 years of data from ESA's Cluster mission, scientists have mapped the heavy metals in the space surrounding Earth, finding an unexpected distribution and prevalence of iron and shedding light on the composition of our cosmic environment.

This storm is thick.

Astronomers study an exotic planet where they suspect iron droplets fall through the atmosphere.

An asteroid following an Earth-intersecting orbit is approaching. Based on the data collected by NASA, the asteroid is big enough to create a violent explosion in the atmosphere if it collides with the planet.

The late 2030s are a realistic launch target for an alien-ocean explorer, should NASA choose to develop one.

"I think we need, probably, on the order of 1,000 ships."

When the supermassive black hole at the center of our galaxy explodes, it likely eviscerates any life close to it. But over longer distances, these bursts of radiation may help life emerge.

When a massive star dies in a supernova, the explosion is only the beginning of the end. Most of the stellar matter is thrown far and wide, but the star’s iron-filled heart remains behind. This core packs as much mass as two Suns and quickly shrinks to a sphere that would span the length of Manhattan. Crushing internal pressure — enough to squeeze Mount Everest to the size of a sugar cube — fuses subatomic protons and electrons into neutrons.

Whew. Don't scare us like that, Voyager 2.

A star that pulsates on just one side has been discovered in the Milky Way about 1500 light years from Earth. It is the first of its kind to be found and scientists expect to find many more similar systems as technology to listen inside the beating hearts of stars improves.

Astronomers from Nanjing University in China have detected gamma ray emission from two star-forming galaxies designated M33 and Arp 299. The finding, which is detailed in a paper published March 17 on arXiv.org, could be helpful in improving knowledge about the origin of very high-energy emission in galaxies.

Project is collaboration between privately-funded firm and New Mexico observatory