Cambridge, MA -- Collectively clocking in at nearly 60 trillion particles, a newly released set of cosmological simulations is by far the biggest ever produced. The simulation suite, dub...

A "massive" black hole (MBH) is one whose mass is more than about one hundred thousand solar-masses. MBHs reside at the centers of most galaxies, and when they actively accrete gas and du...

Joseph Farah, a first-year PhD student at the University California, Santa Barbara, and rising researcher with the Event Horizon Telescope, (EHT) has received the American Physical Societ...

The planets of the solar system all orbit the Sun more-or-less in a plane. Compared to the Earth's orbit, which defines the plane at zero degrees, the orbit with the largest angle is Merc...

Cambridge, MA --In October 2019, a high-energy neutrino slammed into Antarctica. The neutrino, which was remarkably hard to detect, piqued astronomers’ interest: what could generate such ...

The universe was created about 13.8 billion years ago in a blaze of light: the big bang. Roughly 380,000 years later, after matter (mostly hydrogen) had cooled enough for neutral atoms to...

Most stars including the Sun generate magnetic activity that drives a fast-moving, ionized wind and also produces X-ray and ultraviolet emission (often referred to as XUV radiation). XUV ...

The galaxy NGC 1052-DF2 resides in a field of galaxies about sixty-five million light-years away. Its low mass, only about two hundred million solar-masses, makes it a "dwarf" and its siz...

Cambridge, MA -- Astronomers analyzing 3D maps of the shapes and sizes of nearby molecular clouds have discovered a gigantic cavity in space.

When a fast solar wind stream erupts from a coronal hole (a cooler region in the Sun's atmosphere) and overtakes a slower moving solar wind stream, a stream interaction region (SIR) can f...