Agriculture
Jul 2, 2025
Farming within Earth's limits is still possible—but it will take a Herculean effort
The way we currently produce and consume food takes a big toll on the environment.
Search results for Planet Nine
Astronomy
Jun 20, 2025
The solar system's greatest mystery may finally be solved
For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar system. Now, a team of researchers have taken a completely different approach to this cosmic detective ...
Earth Sciences
Jun 18, 2025
Global carbon emissions on track to exhaust 1.5°C budget in three years, study warns
The central estimate of the remaining carbon budget for 1.5°C is 130 billion tons of carbon dioxide (CO2) (from the beginning of 2025). This would be exhausted in a little more than three years at current levels of CO2 emissions, ...
Space Exploration
Jun 10, 2025
The nuclear option: Europe's plan for faster space travel
Getting to Mars takes a really long time, about nine months using today's rocket technology. This is because regular rocket engines burn fuel and oxygen together (like a car engine), but they're not very efficient. The fundamental ...
Ecology
Jun 8, 2025
US oyster gardeners rebuild nature's own water-cleaning system
For many just a tasty delicacy, the oyster may actually be the hero the world needs to fight environmental degradation—and volunteers like Kimberly Price are battling to repopulate the surprisingly powerful species.
Space Exploration
Jun 6, 2025
The promise and peril of a crewed Mars mission
A crewed mission to Mars would rank among the most complex and costly undertakings in human history—and US President Donald Trump has vowed to make it a national priority.
Other
May 31, 2025
Saturday Citations: Wages vs. welfare; origins of teeth; a search for primordial black holes
A new study of the Gobi Wall in the Gobi highland desert of Mongolia reveals a multifunctional role beyond defense; data from the James Webb Space Telescope is bringing physicists closer to resolving the Hubble tension; and ...
Planetary Sciences
May 29, 2025
Scientists make first direct detection of atmospheric sputtering on Mars
A small team of planetary scientists, astrophysicists and space flight researchers affiliated with several institutions in the U.S. and one in France has made the first direct detection of atmospheric sputtering on Mars.
Planetary Sciences
May 29, 2025
The hunt for mysterious 'Planet Nine' offers up a surprise
It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it.
Astronomy
May 27, 2025
New study suggests how wide-orbit planets form, supporting existence of Planet Nine
In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and planetary masses silently orbit their stars—sometimes thousands of astronomical units (AU) away. For years, ...
