Your backstage pass to the universe and how NASA studies it.
Joined on 26 March, 2009
🛑 Pit stop!
Hubble spotted a comet that found a temporary parking place near Jupiter’s asteroids. This is the first time a comet-like object has been seen near these asteroids, called Trojans, but this unexpected guest won’t stay for long. Find out more:
Like light, gravitational waves come in a range of wavelengths and different detectors are needed to cover the full spectrum. 🌈 @esa and @NASA are working on a space-based mission called LISA that will help fill in parts of this spectrum. More:
Astronomers recently linked another neutrino to an extragalactic source, this time from a black hole tearing apart a star. ⚫ Astronomers think the neutrino originated in the disk that formed as the unlucky star’s remains fell toward the black hole. 🥏
In 2017, a neutrino that had traveled 3.7 billion years was detected by @NSF’s @uw_icecube in Antarctica. 🐧 Our Fermi Gamma-ray Space Telescope helped trace its source to a flaring blazar — a type of galaxy powered by a supermassive black hole.
#ICYMI: Meet TOI 451, a planetary system with a star that’s 95% of our Sun’s mass but only 3% of its age! 👶☀️ Studying the hot young worlds of this system gives astronomers an opportunity to test theories about how planetary atmospheres evolve. Read more:
So far, we’ve found that cosmic rays can be created in a number of different sources like:
🏋️♀️ massive stars (stars with 10 or more times the mass of our Sun)
💥 supernovae (explosions of massive stars at the ends of their lives)
🕳 massive stars falling into black holes
Magnetic fields can deflect the paths of charged cosmic rays, so we determine their sources indirectly. 🧲 For example, our Fermi satellite detects gamma rays produced when cosmic rays from supernovae interact with particles in interstellar gas. 💥
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