Plenty of groups have been theorizing about Primordial Black Holes (PBHs) recently. That is in part because of their candidacy as a potential source of dark matter. But, if they existed, they also had other roles to play in the early universe. According to a recent draft paper released on arXiv by Jeremy Mould and Adam Batten of Swinburne University, one of those roles could be as the seeds that eventually form both quasars and radio galaxies.
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What could be the '7 wonders of the universe' visible in the night sky?
What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?
Vera Rubin Observatory glows under recalibration LEDs | Space photo of the day for July 28, 2025
The glowing light shows the intricate details that make this cutting-edge telescope work.
Dune patterns in California desert hold clues that help researchers map Mars’ shifting sands
Looking at dunes and other rock formations on both Earth and Mars can tell scientists the environmental conditions that created them
Live coverage: SpaceX to perform a static fire test of its Falcon 9 rocket ahead of the Crew-11 launch
SpaceX’s Falcon 9 rocket, topped with the Crew Dragon Endeavour, is pictured at sunset on Sunday, July 27, 2025. It will launch the Crew-11 mission, which is schedule to liftoff from Launch Complex 39A at NASA’s Kennedy Space Center on Thursday, July 31, 2025. Image: SpaceX
SpaceX is preparing for a mid-afternoon demonstration on Monday to verify the health of the Falcon 9 rocket that will carry four humans up to the International Space Station this week. The three astronauts and one cosmonaut of the mission, dubbed Crew-11, will carry out a long-duration stay onboard the orbiting outpost with liftoff planned for Thursday, July 31.
Earth's continents are drying out at unprecedented rate, satellite data reveal
The US West Coast is the world's worst mega-drying region.
Congress’s NASA and NSF Budgets Counter Trump, Fund Science
The House and Senate bill drafts keep NASA near current funding levels, but the Trump administration is prematurely readying the agency for heavy cuts
Rapidly spinning dead star's strange 'glitches' are oddly regular
Ultimately, we do not understand where glitches come from or exactly what's going on inside pulsars.
'Star Trek: Strange New Worlds' cast explains those wild and funky wigs in Season 3 (exclusive)
The cast of "Star Trek: Strange New Worlds" has to cover a wide range of dramatic genres, aided in part by the show's ample stockpile of wigs.
Go behind the gory scenes of Hulu's 'Alien: Earth' with gruesome aliens and crawling eyeballs (video)
A new behind-the-scenes featurette from Hulu's upcoming 'Alien: Earth' show why the series will be pure nightmare fuel.
Troubled balloon-tourism pioneer Space Perspective bought by Spanish company
The European company Eos X Space has acquired Space Perspective, one of its key rivals in the nascent field of stratospheric balloon tourism.
Hurricane forecasters are losing 3 key satellites ahead of peak storm season − a meteorologist explains why it matters
Satellite data allows meteorologists to keep track of the location, structure and intensity of severe weather, helping to keep people safe. Now they're losing access to these satellites.
See Mars shine close to the waxing crescent moon after sunset on July 28
Mars will be less than four degrees from the crescent moon around sunset on July 28.
SpaceX launch from California marks 2nd Starlink mission in 24 hours
After an early morning launch from Florida, SpaceX sent another 24 Starlink satellites into orbit on a Falcon 9 launch from Vandenberg Space Force Base in California early on Sunday, July 27, 2025.
Mars' Seasonal Frost Could Briefly Host Liquid Water
What can brine (extra salty) water teach scientists about finding past, or even present, life on Mars? This is what a recent study published in Communications Earth & Environment hopes to address as a researcher from the University of Arkansas investigated the formation of brines using 50-year-old data. This study has the potential to help researchers better understand how past data can be used to gain greater insights on the formation and evolution of surface brines on the surface of Mars.
New Findings Indicate that the Origin of Life Started in Space
Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers announced the detection of 17 complex organic molecules (COMs) in a protoplanetary disk surrounding a distant star. This includes the first tentative detection of ethylene glycol (CH₂OH)₂ and glycolonitrile (HOCH₂CN), which are believed to be building blocks of amino acids and their precursors. While these molecules have been detected in space before, this is the first time scientists have observed them in a planet-forming disk around a protostar, which offers tantalizing clues about the origin of life in the Universe.
SpaceX launches 24 Starlink satellites into a polar orbit
File: A Falcon 9 rocket stands ready to launch a Starlink mission. Image: SpaceX
Update July 26, 12:56 a.m.: The Falcon 9 booster landed on the droneship.
Crew-11 astronauts, cosmonaut arrive in Florida ahead of launch to the space station
The three astronauts and cosmonaut of the SpaceX Crew-11 mission descend from a Gulfstream jet at Space Florida’s Launch and Landing Facility at NASA’s Kennedy Space Center. From bottom to top: Roscosmos cosmonaut Oleg Platonov, Japan Aerospace Exploration Agency (JAXA), NASA astronaut Mike Fincke and NASA astronaut Zena Cardman. Image: John Pisani/Spaceflight Now
The next four souls who will fly to the International Space Station touched down in Florida on a sweltering and humid Saturday afternoon.
The Universe's Brightest Flash Reveals the Secrets of Cosmic Jet
In October 2022, space telescopes detected the most powerful gamma ray burst ever recorded. Known as GRB 221009A and dubbed the "BOAT" (Brightest Of All Time), this explosion was so intense it overwhelmed multiple instruments designed to study such events. Now, new observations from this burst are helping us to understand one of the universe's most mysterious phenomena.
Astronauts' Hearts Stay Healthy Years After Space Missions
Space travel takes quite a toll on the human body. Astronauts experience muscle weakness, bone loss, vision changes, and cardiovascular shifts during their time in microgravity. While scientists understand many of the immediate effects of spaceflight, questions have long been asked about whether these changes cause lasting damage, particularly to the heart and blood vessels.
Seasonal Frosts Could Lead to Patches of Briny Water on Mars' Surface
In 1976, NASA's Viking 1 and 2 missions landed on Mars and began conducting the first astrobiology studies on another planet. This involved the analysis of soil samples for possible indications of organic molecules and biological processes (aka. "biosignatures"). The results of these studies were inconclusive and led to a general sense of pessimism towards the idea that Mars ever hosted life. However, the presence of features that could only have formed in the presence of flowing water - flow channels, delta fans, hydrated minerals, etc. - led to renewed astrobiology efforts by the 1990s.
