New theory explains mystery behind fast magnetic reconnection

When magnetic field lines of opposite directions merge, they create explosions that can release massive amounts of energy. On the sun, the merging of opposing field lines causes solar flares and coronal mass ejections, giant ...

Study inspects properties of four galactic open clusters

Using data from ESA's Gaia space observatory, astronomers from the Istanbul University in Turkey have inspected four galactic open clusters. Results of this research, available in a paper published April 16 on the arXiv pre-print ...

New double neutron star millisecond pulsar discovered

An international team of astronomers reports the discovery of a rare double neutron star millisecond pulsar. The newfound binary pulsar, designated PSR J1325−6253, consists of two neutron stars orbiting one another every ...

Black holes raze thousands of stars to fuel growth

In some of the most crowded parts of the universe, black holes may be tearing apart thousands of stars and using their remains to pack on weight. This discovery, made with NASA's Chandra X-ray Observatory, could help answer ...

Simulation shows how star collisions fuel massive black holes

It's difficult to predict with certainty what will happen when giant stars collide, but new, first-of-their-kind hydrodynamic simulations by the DEMOBLACK team at the University of Padova in Italy point to a range of exotic ...

Two new Saturn-mass exoplanets discovered

An international team of astronomers reports the detection of two new Saturn-mass exoplanets as part of the CARMENES radial velocity survey. The newly found alien worlds, designated TYC 2187-512-1 b and TZ Ari b, orbit nearby ...

Astronomers inspect nova T Aurigae with Hubble

Using the Hubble Space Telescope (HST), astronomers from Villanova University have analyzed spectroscopic observations of a nearby old nova known as T Aurigae. Results of this study, published March 29 on the arXiv pre-print ...

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