When the first stars in the Universe formed, the only material available was primordial hydrogen and helium from the Big Bang. Astronomers call these original stars Population Three stars, and they were extremely massive, luminous, and hot stars. They’re gone now, and in fact, their existence is hypothetical.
Space News & Blog Articles
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NASA's TESS exoplanet hunter may have spotted its 1st rogue planet
NASA's exoplanet hunter TESS may have detected its first free-floating planet with a little help from Einstein.
This spacecraft is headed to NASA's asteroid-crash aftermath — but first, it'll stop by Mars
During a gravity assist with Mars, Hera will study the moon Deimos.
China's Shenzhou 17 astronauts return to Earth after 6 months in space (video)
China's Shenzhou 17 astronauts touched down safely this morning (April 30), bringing their six-month mission to a successful close.
'Star Wars: Obi-Wan Kenobi' and 'Andor' blast onto 4K Ultra HD and Blu-ray today
Disney+ Star Wars series "Obi-Wan Kenobi" and "Andor" land on home video starting April 30 in both 4K Ultra HD and Blu-ray steelbook formats.
Space threats, NORAD upgrade may spur new private defense spending in Canada
The United States and Canada aim to upgrade NORAD to deal with emergent space threats from nations like China or Russia. Canada will hold an industry day May 1 to gather more ideas.
SpaceX vet's startup Portal Space Systems comes out of stealth mode
Portal has developed a new satellite bus called Supernova that the company says will allow unprecedented mobility in Earth orbit and beyond.
Smiles all round: Vega-C to launch ESA solar wind mission
ESA ensures a ride into space for its Smile mission, with Arianespace signing up to launch the spacecraft on a Vega-C rocket
First Light from Einstein Probe: A Supernova Remnant
On 9 January 2024, the Einstein probe was launched, its mission to study the night sky in X-rays. The first image from the probe that explores the Universe in these energetic wavelengths has just been released. It shows Puppis A, the supernova remnant from a massive star that exploded 4,000 years ago. The image showed the expanding cloud of ejecta from the explosion but now, Einstein will continue to scan the skies for other X-ray events.
Evidence for Planet 9 found in icy bodies sneaking past Neptune
The hypothetical ninth planet may be slingshotting Oort Cloud objects onto orbits that come closer to the sun than Neptune does.
Galaxies Evolved Surprisingly Quickly in the Early Universe
Anyone familiar with astronomy will know that galaxies come in a fairly limited range of shapes, typically; spiral, elliptical, barred-spiral and irregular. The barred-spiral galaxy has been known to be a feature of the modern universe but a study from astronomers using the Hubble Space Telescope has recently challenged that view. Following on observations using the James Webb Space Telescope has found the bar feature in some spiral galaxies as early as 11 billion years ago suggesting galaxies evolved faster in the early Universe than previously expected.
NASA crew announced for simulated Mars mission next month
NASA picked a crew of four volunteers to undergo a simulation of life on Mars. The project will begin on May 10.
NASA's Viper moon rover gets its 'neck' and 'head' installed for mission later this year
With its "mighty mast," NASA's Polar Exploration Rover dubbed VIPER continues to be prepped for its mission to the moon slated for late 2024.
China releases world's most detailed moon atlas (video)
The atlas, which is available in Chinese and English, depicts the surface of the moon with a scale of 1:2.5 million. It highlights many intriguing geological features, such as impact craters.
How Knot Theory Can Help Spacecraft Can Change Orbits Without Using Fuel
When a spacecraft arrives at its destination, it settles into an orbit for science operations. But after the primary mission is complete, there might be other interesting orbits where scientists would like to explore. Maneuvering to a different orbit requires fuel, limiting a spacecraft’s number of maneuvers.
Another New Molecule Discovered Forming in Space
The list of chemicals found in space is growing longer and longer. Astronomers have found amino acids and other building blocks of life on comets, asteroids, and even floating freely in space. Now, researchers have found another complex chemical to add to the list.
What would happen if the moon disappeared?
What would happen if our closest neighbor, the moon, disappeared? Here we explore the possible effects it could have on the environment and life on Earth.
Horsehead Nebula rears its head in gorgeous new James Webb Space Telescope images (video)
The James Webb Telescope has zoomed in on the Horsehead Nebula, capturing slices of this stunning star-forming region close to Earth in an entirely new light.
China to launch sample-return mission to the moon's far side on May 3
China reportedly plans to launch its Chang'e 6 sample-return mission toward the moon's mysterious far side on Friday (May 3).
Boeing Starliner astronauts conduct dress rehearsal ahead of May 6 launch (photos, video)
Boeing Starliner's 1st astronaut crew continues their training, even in quarantine. After finishing a big dress rehearsal on April 26, practice continues ahead of the scheduled May 6 launch to the ISS.
A Cosmic Arrow Pierced Pluto's Heart — Is It Still There Beneath the Surface?
A giant impact likely formed Pluto's heart-shaped basin, Sputnik Planitia. A big chunk of the impactor’s core might still be buried under the ice.
