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Exoplanet axis study boosts hopes of complex life, just not next door
Astrophysicists modeled a theoretical twin of Earth into other star systems called binary systems because they have two stars. They concluded that 87% of exo-Earths one might find in binary systems should have axis tilts similarly steady to Earth's, an important ingredient for climate stability that favors the evolution of complex life.
November 19, 2019 Read more
How to observe a 'black hole symphony' using gravitational wave astronomy
New research by astrophysicists presents a compelling roadmap for capturing intermediate-mass black hole activity.
November 18, 2019 Read more
The measurements of the expansion of the universe don't add up
Physicists use two types of measurements to calculate the expansion rate of the universe, but their results do not coincide, which may make it necessary to touch up the cosmological model.
November 18, 2019 Read more
Spin doctors: Astrophysicists find when galaxies rotate, size matters
The direction in which a galaxy spins depends on its mass, researchers have found.
November 15, 2019 Read more
Nearly extreme black holes which attempt to 'regrow hair' become bald again
Black holes 'have no hair': no attributes that can be used to tell them apart. Extreme black holes can have an additional property, permanent hair that is made of a massless scalar field. Nearly extreme black holes have hair that is a transient phenomenon: nearly extreme black holes that attempt to regrow hair will lose it and become bald again.
November 15, 2019 Read more
'Are we alone?' Study refines which exoplanets are potentially habitable
First study to combine 3D climate modeling with chemistry explores M dwarf planets.
November 14, 2019 Read more
Hyper-fast star ejected by supermassive black hole
Astronomers have spotted an ultrafast star, travelling at a blistering 6 million km/h, ejected by the supermassive black hole at the heart at the Milky Way five million years ago.
November 12, 2019 Read more
Astrophysicists further refine how quickly the universe is expanding
Wielding state-of-the-art technologies and techniques, a team of astrophysicists has added a novel approach to quantifying one of the most fundamental laws of the universe.
November 8, 2019 Read more
Astronomers observe a 'sunburst' from the early universe - in 12 copies
With the powerful eyes of the Hubble Space Telescope, an international team of astronomers observed straight into the bright and hot heart of a galaxy 11 billion years old in no less than 12 multiple, gravitationally lensed images. The finding casts light onto a crucial era in our universe?s history: the epoch of reionization.
November 8, 2019 Read more
Galactic fountains and carousels: order emerging from chaos
Astronomers have unveiled the results of a newly-completed, state of the art simulation of the evolution of galaxies. It allows researchers to study in detail how galaxies form, and how they have evolved since shortly after the Big Bang. For the first time, it reveals that the geometry of the cosmic gas flows around galaxies determines galaxies? structures, and vice versa.
November 7, 2019 Read more
Black holes sometimes behave like conventional quantum systems
Astronomers have studied the emergence of generalized thermal ensembles in quantum systems with additional symmetries. As a result they found that black holes thermalize the same way ordinary matter does.
November 5, 2019 Read more
New study sheds light on conditions that trigger supernovae explosions
Research offers a critical understanding of a process both in stars and in chemical systems on Earth.
November 1, 2019 Read more
Worldwide observations confirm nearby 'lensing' exoplanet
Astronomers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing. The exoplanet has a mass similar to Neptune, but it orbits a star lighter (cooler) than the Sun at an orbital radius similar to Earth's orbital radius.
November 1, 2019 Read more
Astronomers catch wind rushing out of galaxy
Researchers observe huge outflow of gas extending far beyond a galaxy for the first time.
October 31, 2019 Read more
The science of exoplanets is poised for major breakthroughs
TESS, the Transiting Exoplanet Survey Satellite, is NASA's newest exoplanet mission. TESS will find thousands of new planets orbiting nearby stars. During its two year survey, TESS will watch a wide variety of stars, looking for signs of planets ranging from Earth-size to larger than Jupiter.
October 31, 2019 Read more
Even 'Goldilocks' exoplanets need a well-behaved star
Team models stellar activity on Milky Way neighbors to judge impact on planets.
October 31, 2019 Read more
Simulations explain giant exoplanets with eccentric, close-in orbits
A giant-impacts phase in the evolution of planetary systems can explain the observations of close-in giant planets with eccentric orbits.
October 30, 2019 Read more
Thousands of new globular clusters have formed over the last billion years
Globular clusters, which have been forming over the last billion years, have been found to exist around the giant galaxy at the centre of the Perseus cluster.
October 29, 2019 Read more