Testing for the Presence of a Planet
The T Tauri star PTFO 8-8695 has been suspected of harboring a close-in giant planet, but a recent study has cast doubt on this theory.
The T Tauri star PTFO 8-8695 has been suspected of harboring a close-in giant planet, but a recent study has cast doubt on this theory.
A recent study used the Hubble Space Telescope to perform a high-resolution multi-band survey of Westerland 2, the very young star cluster visible in this spectacular image.
Could high rates of star formation, observed in galaxies at high redshifts, be explained by feedback from active nuclei at the centers of the galaxies?
What remnant is formed by a neutron-star merger: another neutron star? Or a black hole? The answer determines whether or not an explosion of energy is released in the form of a gamma-ray burst.
Usually stars that are born together tend to move together — but sometimes stars can go rogue and “run away” from their original birthplace. A pair of astronomers have now discovered the first runaway red supergiant ever identified in another galaxy.
Kepler’s K2 mission has recently discovered two Earth-sized planets transiting a small, cool star only ~200 light-years away.
The Interstellar Boundary Explorer (IBEX) is a mission designed to map the boundary between our solar system and interstellar space. A series of results from the first six years of the IBEX mission have just been released.
A recent study argues that an enormous stellar stream extending from NGC 4631, the “Whale” galaxy, is evidence that this galaxy has grown by tearing apart and absorbing smaller satellite galaxies nearby.
New measurements of the lowest-mass quadruple star system ever discovered are now confirming an intriguing theory: in addition to other channels, large gas planets may form via cloud collapse, in the same way that stars do.
The source of the Kappa Cygnid (KCG) meteor shower is unknown, but new data from an especially strong 2014 KCG shower may help us to identify the missing parent body.
NGC 1427A is a dwarf irregular galaxy currently in the process of plunging into the center of the Fornax cluster. How do the interactions of this galaxy with its environment affect star formation within it?
Recent high-resolution observations of Arp 220, a galaxy merger located a mere 250 million light years away from us, have finally provided a closer look at what’s happening in the center of this merger.