Tag: Stars

Shrouded in a dense cloud of gas and dust, a young star in the constellation Ophiuchus that astronomers have studied for decades has been found to be a duo. It would also appear that both members of the pair are encircled by a disk of material within which planets may have just begun coalescing. The twin stars, which reside about 400 light-years from Earth in the WL 20 group, are less than a million years old and appear to have pushed away the billowy orange clouds within which they formed,…

Astronomers have discovered the slowest spinning radio wave-blasting neutron star ever seen; it takes almost an hour to complete a full rotation.  That may sound rather fast, but these dead stars are known to spin so rapidly that some experience 700 full turns every second. Even the most leisurely of the about 3,000 radio-emitting neutron stars, or “pulsars,” discovered so far complete a full rotation in a second or so. This ultra-leisurely neutron star, however, designated ASKAP J1935+2148 and located 16,000 light-years from Earth, is emitting radio light at a rate…

For the first time, astronomers have detected the magnetic fields of massive, blazingly hot stars outside our galaxy. They’re stars that actually live in our galactic companions, the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC).  Discovering stellar magnetism in these satellite galaxies of the Milky Way, both of which have a large population of young stars, offers scientists a unique chance to study actively forming stars. It could also answer the question of how much mass a star can pile on before it loses stability. Magnetism is…

Using the Euclid space telescope, scientists have discovered a staggering 1.5 trillion orphan stars drifting through a massive cluster of thousands of galaxies, one of the largest structures in the cosmos.  These orphan stars, ripped free from their own galaxies, are filling the space between the galaxies of the Perseus cluster with ghostly blue light. This so-called “intracluster” light is so faint that it is many thousands of times darker than the night sky over Earth.  By observing this intracluster light in the Perseus cluster, which is located 240 million…

Have you ever wondered what our sun looked like when it was young? Although we know the sun to be an unchanging, and even predictable source, of light in our skies, its youthful version some 4.6 billion years ago was quite active. During those formative years, our star spewed solar flares every week or so, despite shining only about a third as bright as it does now. Scientists also suspect that even though the early sun exhibited a dim stature, it kept the then-young Earth warm enough for life to…

Every new parent knows the cold anxiety that grips them when their baby sneezes for the first time. That’s when a litany of possible issues and ailments probably begin to irrationally race through your mind. Researchers now know baby stars also “sneeze,” but these infinitely more powerful post-natal sneezes launch gas, dust, and magnetic energy. In other words, they’re more useful to the cosmos than stressful.  These eruptions from so-called “protostars” are actually a vital part of stellar development, and can tell scientists a great deal about that stellar body’s evolution…