Outer space is much closer than you think. It's not closing in on Earth, but Jonathan McDowell suggests that the boundary separating the planet and everything else out there is 12 miles nearer than widely believed.
More than a century since Albert Einstein revealed his theory of general relativity, he's still being proven right. In a new paper, scientists observed a supermassive black hole's powerful gravitational pull warp starlight, just as Einstein predicted.
The longest total lunar eclipse of the 21st century is set to take place on July 27. Find out when and where to catch the historical eclipse coming soon.
Jupiter's total moon count jumps to 79 following the discovery of 12 new moons around the planet. Of the new dozen, astronomers pinpoint an 'oddball' moon with a dangerous orbit that's unlike any other Jovian moon.
Decades after one of humankind's greatest achievements of getting a man on the Moon, trips there remain surprisingly rare. Former astronaut Chris Hadfield and others explain why.
The moon and Venus set up a rare date in the nighttime sky, appearing within inches of each other on Sunday. The celestial pairing will continue to be quite close for a few more days this week.
South Africa's powerful new radio telescope MeerKAT captured the Milky Way's center with extraordinary detail and unparalleled clarity. It's the clearest ever view of its heart, which could answer so many questions astronomers have on the Milky Way and beyond.
It's the end of an era. For decades, the Cape Canaveral launch towers have stood as stalwarts symbolizing the United States space program. Now, the landmark gets demolished just as Delta nears its end.
A seemingly regular asteroid turns out to be double trouble as scientists found it is actually a binary system of two objects orbiting each other. This is only the fourth equal mass binary system ever recorded.
Life on Mars? Not exactly, but the seasonal spiders that appear on Mars' surface has an interesting story behind them, especially since it's a natural process that doesn't occur on Earth.
NASA is looking for creative ways to deal with the trash accummulated in space. As humanity travels further into the cosmos, the prospect of garbage management becomes trickier and much more important.
NASA may have collected evidence of organic Martian matter 40 years ago — then burned it away accidentally in the Viking landers. A new study tackles the decades-old mystery.
How fast is the universe expanding? Scientists may soon find an answer as a new study reveals the rate of the universe's expansion could potentially be measured by gravitational waves from black holes and neutron stars.
Israel's first spacecraft to the moon is in the works. The country is aiming to be the fourth country to succeed in a lunar mission with a little help from a SpaceX rocket.