What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common?

Alien hunters deploy new telescopes and tactics—and win some respect

Fusion power is the technology that is thirty years away, and always will be – according to skeptics at least.  Despite its difficult transition into a reliable power source, the nuclear reactions that power the sun have a wide variety of uses in other fields.  The most obvious is in weapons, where hydrogen bombs are … Continue reading "Impatient? A Spacecraft Could Get to Titan in Only 2 Years Using a Direct Fusion Drive"

This magnificent 360-degree panoramic image, covering the entire southern and northern celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. This gorgeous starscape serves as the first of three extremely high-resolution images featured in the GigaGalaxy Zoom project, launched by ESO within the framework of the International Year of Astronomy 2009 (IYA2009).

By combining photonics with artificial intelligence, University of Sydney scientists have developed a sensor that will help decipher the 'twinkle' of stars and allow for Earth-based exploration of planets around distant stars. Their invention will be deployed in one of the world's largest telescopes at Mauna Kea, Hawaii.

SpaceX CEO Elon Musk has engaged himself with conquering the solar system, with his first mission being Mars. The South African-born billionaire may have to compete with aliens when occupying a planet, but he doesn’t think so.

Space is more densely packed than astronomers thought.

New satellite imagery of California reveals not just the extent of its wildfire damage, but the depth of the loss.

Life is here. Can they see it?

Life on Venus? That outrageous-sounding possibility understandably made headlines a couple weeks ago. In part, the news grabbed people's attention because Venus seems like such an unlikely place to find anything alive. The surface temperature there averages 460 degrees Celsius, and the pressure at sea level is a crushing 93 times the atmospheric pressure on Earth — except, of course, there is no actual sea on Venus.

Stressed out about the presidential election this year? The Universe heard you and is sending you an asteroid. In an Instagram post, Neil deGrasse Tyson shared a photo of the Earth from space along with what you can only assume is an asteroid. Asteroid 2018VP1 - now that's a mouthful - is a space-rock the size of a refrigerator, Tyson said, and it's hurtling towards us at more than 25,000 miles per hour.

Powerful stellar eruptions could pose a serious challenge to the origin and evolution of life around the universe, a new study suggests. Such outbursts throw off large amounts of ultraviolet (UV) radiation, which is not only directly harmful to life as we know it but can also strip away the atmospheres of relatively close-orbiting planets. These issues are especially pronounced for worlds circling red dwarfs, small and dim stars that make up about 75% of the Milky Way galaxy's stellar population.

The SpaceX founder will update his grand vision at the Mars Society virtual convention.

SpaceX will test in-orbit refueling in one of the 'Tipping Point' contracts.

The Roman Space Telescope is expected to make amazing discoveries, just like whom it’s named after.

Millions of space nerds reacted with joy Monday to a study showing the atmosphere of Venus contains phosphine, a chemical byproduct of biological life. But none would have been more thrilled or less surprised by the discovery than the late, great Carl Sagan — who said this day might come more than 50 years ago.

Space tourism venture Virgin Galactic on Wednesday confirmed to CNBC that it remains on track to conduct its next test spaceflight this fall.

Col. Terry Virts shares his experience as an astronaut and what it's really like to be in space, including training, fitness, hygeine, and more.

If you’ve seen the movie The Martian, you no doubt remember the rescue scene, in which (spoiler alert!) Matt Damon launches himself off Mars in a stripped-down rocket in hopes of his carefully-calculated trajectory taking him just close enough to his former crew for them to pluck him from the void of outer space and bring him safely home to Earth. There’s a multitude of complex physics involved, and who knows how true-to-science the details of the movie are...

Flying observatory that made new discovery is able to ‘pick up phenomenon impossible to see with visible light’, space agency notes