Stars spin faster than expected as they age according to a new study led by scientists at the University of Birmingham which uses asteroseismology to shed new light on this emerging theory.
On May 1, 2019, researchers observed a record-setting flare from the star Proxima Centauri--a burst of energy roughly 100 times more powerful than any similar event seen from Earth's sun.
Scientists have found fragments of titanium blasting out of a famous supernova. This discovery, made with NASA's Chandra X-ray Observatory, could be a major step in pinpointing exactly how some giant stars explode.
Astronomers have discovered a pulsar--a dense and rapidly spinning neutron star sending radio waves into the cosmos--using a low-frequency radio telescope in outback Australia. The new pulsar is located more than 3,000 light-years from Earth and spins about once every second. Pulsars are used by astronomers for applications including testing the laws of physics under extreme conditions. The study of pulsars is one of the headline areas of science for the multi-billion-dollar Square Kilometre Array.
By studying ancient meteorite fragments, scientists can gain important insights into how our solar system formed eons ago. Now, in a new study, researchers have discovered carbon dioxide-rich liquid water inside a meteorite from an asteroid that formed 4.6 billion years ago. This finding suggests that the meteorite's parent asteroid formed beyond Jupiter's orbit before being transported into the inner solar system and provides key evidence for the dynamics of the Solar System's formation.
In recent years there has been an exhaustive study of red dwarf stars to find exoplanets in orbit around them. These stars have effective surface temperatures between 2400 and 3700 K (over 2000 degrees cooler than the Sun), and masses between 0.08 and 0.45 solar masses.
A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, is the key factor in deciding the final mass of the produced star.
A pair of orbiting black holes millions of times the Sun's mass perform a hypnotic pas de deux in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas - called an accretion disk - that surrounds each one.
New mathematical framework predicts that star systems Kepler-34, -35, -38, -64 and -413 with circumbinary giant planets have stable Habitable Zones, potentially suitable for life
The new study focuses on the outgoing flux of phase-volume, rather than the phase-volume itself. Since the flux is finite even when the volume is infinite, this flux-based approach avoids the artificial problem of infinite probabilities, without ever introducing the artificial strong interaction region.