Black holes control galactic evolution
Energy produced by black holes can control galactic evolution. Also; discovery of a star system that passed close to our Sun, and the heliosphere may be shaped more like a kidney than a comet.
Mysterious Martian mists discovered
Strange high altitude clouds detected over the red planet. Also; Earth's inner core has its own inner core, and birth of a multiple star system witnessed for the first time.
First stars are younger than we thought
Universe's first stars born 100 million years earlier than previously thought. Also; new discoveries help explain how tectonic plates move, and a dark matter galaxy discovered on the far side of the Milky Way.
Supernova autopsy cuts to the core
Detailed 3D model shows internal anatomy of a supernova for first time. Also; earliest Earth-like planets ever detected, and the hypothetical subatomic particle that could explain why we can't see dark matter
Rosetta's comet dissected in detail
The first detailed scientific papers paint a complex portrait of comet 67P. Also; a new look at Eta Carinae, and our planet's close encounter with a half-kilometre-wide asteroid.
Mysterious cosmic burst detected in real-time
Australian astronomers witness cosmic radio bursts for the first time. Also; new claims of a possible Planet X (and Y) at the edge of the solar system, and missing Beagle 2 lander discovered on the Martian surface.
Comet Lovejoy fireworks bring in the new year
Comet Lovejoy provides a spectacular start to 2015. Also; the Dawn spacecraft begins final approach to the asteroid Ceres, and New Horizons turns on its science instruments as it prepares to rendezvous with Pluto
Rosetta fuels debate on Earth's oceans
New data shows Earth's oceans came from asteroids not comets. Also; Curiosity confirms Mars was once warm with regular wet seasons, and dark matter could be linked to a hypothetical subatomic particle called the sterile neutrino.
Galactic evolution is in the stars
How hot young stars can change the evolution of entire galaxies. Also; the Martian meteorite that's reignited debate about the possibility of life on the red planet, and new mysteries surrounding the Moon's long gone magnetic field.
DNA survives in space
DNA survives the extremes of unprotected exposure in space to remain viable upon return to Earth. Also, discovery of a mysterious shield protecting our planet from high energy electrons, and the rock from deep space which has finally put a name to the most abundant mineral found on Earth.