Astronomers today can measure the size of our Universe, thanks in part to Henrietta Swan Leavitt -- one of astronomy's lesser-known heroines.

Europe's largest floating solar farm, made up of more than 23,000 solar panels, was just turned on. The farm will generate 5.8 million kilowatt hours of power during its first year, enough energy to power 1,800 homes.

A team of scientists in Massachusetts has regenerated functional human heart tissue using adult skin cells. This is the closest anyone has come to growing a human heart.

According to data released by NASA, the craters on Mars' desert-like surface used to be filled with water. The Mars Curiosity Rover determined that sediments found in the Gale Crater must have formed through the presence of water.

Japanese scientists have designed a fork that creates a salty taste without there actually being salt present.

Scientists recently discovered preserved blood vessels inside the bones of a 240 million-year-old reptile in Poland, where a warm sea used to exist. The fossils contain amino acids from collagen as well as other proteins.

Europe has come together to construct and move an enormous steel-clad casement that will cover the site, blocking radiation emission completely, and allowing the remains of the reactor to finally be dismantled safely.

A study revealed 19 new pieces of ancient viral DNA in the human genome. The DNA originally came from retroviruses invading ancient humans' bodies and inserting their DNA into human cells.

A Russian satellite has revealed that radiation streams emanating from a black hole can reach 18 trillion degrees Fahrenheit. This exceeds what was thought to be the limit of 179 billion degrees.

Archeologists have unearthed 180 artifacts from 14 archeological sites near an ancient Mayan city.

In a rare find, researchers have discovered a three-star system 685 million light years away. And in an even rarer find, the area hosts a stable planet, roughly the size of Jupiter.

NASA recently released a striking time-lapse video featuring the Aurora Borealis and Aurora Australis from an astronaut's point of view.

2016 marks 55 years of human spaceflight and two Russian space enthusiasts celebrated the event with a giant portrait of Yuri Gagarin stamped out in a snowy field south of Moscow.

Thawing permafrost - the layer of soil that stays frozen year-round - is melting. Engineers have worked around this issue in the past but their methods could stop working.

Cancer drugs are often derived from plants, many of which are endangered and make treatment methods hard to guarantee.

NASA just installed the first expandable structure on the International Space Station's Tranquility module.