Astronomy
Alligator Goes for a Swim
Is water really a necessary ingredient for life? Aliens may swim in truly exotic pools
Tracking the climate-driven shift in Antarctic plankton from space
Combining 25 years of space-based data with ocean sampling, scientists have uncovered a change in the microscopic organisms that underpin the Southern Ocean’s food chain and carbon storage.
No Earth-like atmosphere on TRAPPIST-1 d
The exoplanet TRAPPIST-1 d intrigues astronomers looking for possibly habitable worlds beyond our solar system because it is similar in size to Earth, rocky, and resides in an area around its star where liquid water on its surface is theoretically possible. But according to a new study using data from the NASA/ESA/CSA James Webb Space Telescope, it does not have an Earth-like atmosphere.
Red supergiant star expels mysteriously large cloud of gas
Satellites watch Tropical Storm Erin take shape over the Atlantic Ocean (video)
GPT-5's modest gains suggest AI progress is slowing down
GPT-5's modest gains suggest AI progress is slowing down
Couples who meet online may have lower relationship satisfaction
Couples who meet online may have lower relationship satisfaction
New lunar surface simulator in Colorado puts moon machinery to the test
China's moon lander passes key test | Space photo of the day for Aug. 13, 2025
Vape mouthpieces could be swarming with fungi that harm airways
Vape mouthpieces could be swarming with fungi that harm airways
Perseid meteor shower 2025 outshines moon to put on a spectacular show (photos)
These Spiders Puke Up Toxic Digestive Fluid to Marinate Their Prey Alive
Without a venomous bite, some spiders use a disturbing second option to prepare their food
A Male Birth Control Pill Moves to the Next Clinical Trial Stage
A new hormone-free birth control pill that reversibly stops sperm production has passed its first safety trial in humans, offering hope for more reversible contraceptive options.
MetOp-SG-A1 and Sentinel-5 launch highlights
Europe’s first MetOp Second Generation, MetOp-SG-A1, weather satellite – which hosts the Copernicus Sentinel-5 mission – has launched aboard an Ariane 6 rocket from Europe’s Spaceport in French Guiana. The rocket lifted off on 13 August at 02:37 CEST (12 August 21:37 Kourou time).
MetOp-SG-A1 is the first in a series of three successive pairs of satellites. The mission as a whole not only ensures the continued delivery of global observations from polar orbit for weather forecasting and climate analysis for more than 20 years, but also offers enhanced accuracy and resolution compared to the original MetOp mission – along with new measurement capabilities to expand its scientific reach.
This new weather satellite also carries the Copernicus Sentinel-5 mission to deliver daily global data on air pollutants and atmospheric trace gases as well as aerosols and ultraviolet radiation.