Astronomy
Astronaut savors the moment and shares a stunning aurora shot | On the International Space Station July 28-Aug. 1, 2025
Week in images: 28 July - 1 August 2025
Week in images: 28 July - 1 August 2025
Discover our week through the lens
Stunning 'sun dogs' could sparkle in alien skies, James Webb Space Telescope suggests
U.S. Science Has Weathered Attacks Before and Won
Federal officials seized 3,000 copies of Scientific American in 1950 in a “red scare” era of attacks on science. The move backfired and offers lessons for today
SpaceX fires up Starship spacecraft ahead of 10th test flight (video, photos)
A New Lunar Far Side Radio Telescope Is Ready For Testing
We’ve been talking about sending a radio telescope to the far side of the Moon for awhile now. Now that reality is one step closer with the completion of the design and construction phase of the Lunar Surface Electromagnetics Experiment-Night (LuSEE-Night) radio telescope project. This milestone marks a major step in the development of the system, which is planned to launch on a lunar lander in 2026.
JWST Reveals Four Distinct CO₂ Types on Saturn’s Moons
What can carbon dioxide (CO₂) on Saturn’s moons teach scientists about their formation and evolution? This is what a recent study submitted to The Planetary Science Journal hopes to address as a team of researchers investigated the different types of CO₂ that exist on several of Saturn’s mid-sized moons. This study has the potential to help scientists better understand the existence of CO₂ on planetary bodies and what this could mean for their formation and evolution, and potentially whether they could possess life as we know it.
Primordial Black Holes Could Act As Seeds For Quasars
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.
Cameras that work like our eyes could give boost to astronomers
Cameras that work like our eyes could give boost to astronomers
Why Do Black Holes Spin?
Scientists are uncovering how spinning black holes launch jets, warp spacetime and shape the cosmos
Anthropic’s Claude 4 Chatbot Suggests It Might Be Conscious
A conversation with Anthropic’s chatbot raises questions about how AI talks about awareness.
Did 'primordial' black holes born right after the Big Bang help our universe's 1st stars form?
Our verdict on Lake of Darkness by Adam Roberts: A mixed bag
Our verdict on Lake of Darkness by Adam Roberts: A mixed bag
What would it feel like to be on a planet spinning out of control?
What would it feel like to be on a planet spinning out of control?
Read an extract from Alex Foster’s sci-fi novel Circular Motion
Read an extract from Alex Foster’s sci-fi novel Circular Motion
SMOS adds long-term view on carbon stored in forests
Data from ESA’s Soil Moisture and Ocean Salinity (SMOS) mission can be used to estimate how much carbon is stored in forests – and a study has improved our understanding of how reliable this proxy is and how long-term datasets from SMOS can help us to monitor this valuable resource.