There are three known types of black holes in the Universe: supermassive black holes that lurk in the centers of galaxies, stellar-mass black holes that are the remnants of massive stars, and intermediate-mass black holes that can be found in dense clusters of stars. But there is a fourth, hypothetical type of black hole known as primordial black holes (PBHs). If they exist, they could solve a few cosmological mysteries.
Space News & Blog Articles
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What did ancient humans know about astronomy?
Humanity's ability to track and monitor celestial cycles stretches back into prehistory, long before the invention of telescopes and astrolabes.
Season 4 of 'For All Mankind' debuts with alternate asteroid history
The events of 2003 changed the direction of human space exploration — both in our timeline and that of the alternate history series "For All Mankind." The fourth season picks up in 2003.
I review star projectors for a living and this early Black Friday deal is one of the best I've seen all year.
This star projector easily competes with the most expensive models, and with a further Black Friday saving, now's the time to snap one up.
Bulgaria signs Artemis Accords for peaceful moon exploration
Bulgaria became the 32nd nation to sign the Artemis Accords in a signing ceremony Nov. 9 with NASA Administrator Bill Nelson and Milena Stoycheva, Bulgaria's minister of innovation and growth.
Trisat-R’s 2-mm Camera Took This Picture of the Earth From 6,000 Km Away
Trisat-R’s innovative camera pioneering a new technology in space caught a unique view of our home world.
'Loki' season 2 episode 6 review: Finding a glorious purpose
The sixth and final episode of Loki season 2 wraps up a fantastic character arc and literally gives the Marvel Cinematic Universe a second chance.
Black Friday beginner drone on sale — save $60 on the DJI Mini 3 Fly More Combo
This is our top pick of best beginner drones — today, you can get the drone, additional batteries, a two-way charging hub, a shoulder bag, and more, for less!
A newly discovered comet will shine bright in the Hercules constellation tonight. Here's how to see it
The comet C/2023 H2 (Lemmon) will reach peak brightness on Friday, Nov. 10, illuminating the sky and possibly becoming visible with the naked eye.
'The Marvels' review: A chaotic cosmic headache
Marvel Studios' latest movie, The Marvels, exhibits all the symptoms of a rusty creative process. Despite some sparse bursts of charm, it lacks quality control.
US military gives Lockheed Martin $33.7 million to develop nuclear spacecraft
The U.S. Air Force Research Laboratory just awarded $33.7 million to Lockheed Martin to help 'mature high-power nuclear electric power and propulsion technologies and spacecraft design.'
Is Anything Absolute with Relativity?
The theory of relativity is at once simple and elegant but also maddeningly nonintuitive. There’s no need to get into the full guts and glory of that theory here, but there is one feature of Einstein’s work that takes center stage, and would eventually lead him into a complete reshaping of Newton’s gravity, altering our very conceptions of the fabric of the universe.
Safety, not speed, should be the priority in launch mishap probes, FAA advisory group says
With more space launches than ever, industry wants a way to speed up licensing after mishaps. But safety must come first, say members of a Federal Aviation Administration advisory committee say.
Detecting alien life might be easier if we hunt for 'Jurassic worlds.' Here's why
"If they're out there, this analysis lets us figure out where they could be living."
Hera asteroid mission hears the noise
ESA’s Hera asteroid mission has completed acoustic testing, confirming the spacecraft can withstand the sound of its own lift-off into orbit. Testing took place within the Agency’s Large European Acoustic Facility at the ESTEC Test Centre in the Netherlands. This is Europe’s largest and most powerful sound system, fitted with a quartet of noise horns that can generate more than 154 decibels of extreme noise.
These small galaxies were shredded by their larger siblings — but they survived
Using the Gemini North Telescope located near the Mauna Kea mountain in Hawaii, the team behind the research spotted galactic cannibalism in action near the Virgo Cluster, a large grouping of thousands of galaxies relatively nearby to Earth.
This Week's Sky at a Glance, November 10 – 19
The crescent Moon slips down into the sunrise and then up in the afterglow of sunset, guiding the way to the last stars of Sagittarius right after dark. A few days later it passes Saturn.
Earth from Space: Autumn in Japan
Image: This image, from the Copernicus Sentinel-3 mission on 1 November 2023, captures the colours of autumn over the Japanese archipelago.
A green glow in the martian night
When future astronauts explore Mars’s polar regions, they will see a green glow lighting up the night sky. For the first time, a visible nightglow has been detected in the martian atmosphere by ESA’s ExoMars Trace Gas Orbiter (TGO) mission.
SpaceX launches Dragon cargo ship to space station
A long-exposure from the beach at Cape Canaveral captures the first-stage and second-stage burns, plus the entry and landing burns of the first-stage. Image: Michael Cain/Spaceflight Now.
Lighting up the night sky, a SpaceX Falcon 9 rocket streaked into orbit in spectacular fashion Thursday, kicking off a 32-hour rendezvous with the International Space Station to deliver 6,500 pounds of research gear, crew supplies and needed equipment.
