NASA is working hard to stop fuel leaks on its big rocket before the next test. The Space Launch System (SLS) used for Artemis missions has had a problem with hydrogen leaking during fueling. The leak caused a practice countdown to stop early in February. Scientists traced the problem to the
A long study followed almost 3, 000 older adults for twenty years. Only one type of brain exercise stood out: “speed training. ” These games asked participants to spot and move on visual clues quickly. Those who did the initial five‑week program and then had refresher sessions at about one
A new team of four astronauts touched down at the International Space Station (ISS) on Saturday, filling a vacancy left when the earlier crew had to head back to Earth sooner than planned. Two of them come from the United States, one is a European Space Agency scientist, and another is a Russian cos
In 2018, two scientists walked deep into a remote part of the Carlsbad Caverns in New Mexico. They found walls covered with a bright green substance that could not have been reached by any visible light. The green coating is made of tiny cyanobacteria that use two uncommon pigments, chlorophyl
Plants do not instantly snap back to their normal state after a tough season. They keep biochemical signs of past hardships that change how they act when new challenges appear. This lasting imprint is called biochemical memory. It shows up as shifts in protective molecules, balance of oxidants and a
A new way of watching cell growth uses tiny smart sensors that stay inside the culture chamber. The chambers, called G‑Rex, let cells expand quickly because they get oxygen and food just by moving air around them. Because no pumps are needed, the whole process is less complicated and cheaper t
The world of music is getting a new helper: computer‑made tunes. These tracks can help people heal, let artists tweak their work, and spark fresh ideas. But when machines start filling the air with songs that look almost like real music, it becomes hard for teachers, fans and creators to know what i
A team of scientists used the Cheops telescope to look at a star that is far away, about 117 light‑years from us. The star is small and dim, called a red dwarf, and it has four planets orbiting around it. Two of the planets are rocky like Earth, while the other two are gaseous and look more like Nep
In a cosmic twist, a star has been caught sending out a heart-shaped cloud of dust and gas. This star, Mira A, is not just any star. It's a red giant, and it's part of a binary system with a white dwarf called Mira B. Both stars are located in the constellation Cetus, about 300 light-years from Eart
Scientists have found a new way to check for tiny amounts of cobalt-60 in carbon-14 urea pills. These pills are used in medical tests. The new method uses a technique called liquid scintillation counting. This technique measures the energy released by radioactive materials. The method focuses on th
