Newly formed dwarf galaxies were likely the reason that the universe heated up about 13 billion years ago, according to new work by an international team of scientists. The finding opens an avenue for better understanding the early period of the universe's 14 billion year history.
Scientists working with the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) observatory have reported the discovery of the most energetic pulsed emission radiation ever detected from the neutron star in the center of the supernova of 1054 A.D., known as the Crab pulsar.
Researchers developed a Martian concrete using materials naturally found on the planet. The high-strength concrete can be quickly created and is durable enough to withstand meteorite impacts - a key element needed to create viable shelters for humans.
A trio of brightly pulsating stars at the outskirts of the Milky Way is racing away from the galaxy and may confirm a method for detecting dwarf galaxies dominated by dark matter and explain ripples in the outer disk of the galaxy.
Researchers have discovered a powerful galactic blast produced by a giant black hole about 26 million light years from Earth. The black hole is the nearest supermassive black hole to Earth that is currently undergoing such violent outbursts.
New work indicates that one recently developed method for determining a star's age needs to be recalibrated for stars that are older than our Sun. This is due to new information about the way older stars spin, as spin rate is one of the few windows into stellar ages.
How are asteroids and planets formed from stony particles? This question is being explored in an experiment by scientists who have developed beads made of a special type of glass. They form the composition of the rock particles as naturally as possible on a small scale.
The International Space Station is the longest-running continuously inhabited human outpost in space - this year it celebrated its 15th anniversary. As the ISS orbits the Earth it is essentially in a state of free fall, counteracting the Earth's gravity and providing an ideal platform for science in space.
NuSTAR recently looked inside one of the densest doughnuts known around a supermassive black hole. This black hole lies at the centre of a well-studied spiral galaxy called NGC 1068, located 47 million light-years away in the direction of the constellation of Cetus. The observations revealed a clumpy doughnut.
A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth. Observations provide a surprising look into the environment near a supermassive black hole at the galaxy's center and offer a glimpse into the state of the cosmos 7 billion years ago.