How large are neutron stars?
An interdisciplinary research team has identified new, narrower limits on the radii of neutron stars. The team determined the radius of a typical neutron star to be close to 11 kilometers.
Dec 30th, 2020
Read more
Space Exploration News – Latest Headlines
Subscribe to our Space Exploration News feed
Primordial black holes and the search for dark matter from the multiverse
Astrophysicists describe a novel scenario for PBH formation and showed that the black holes from the 'multiverse' scenario can be found using the Hyper Suprime-Cam of the 8.2m Subaru Telescope.
Dec 28th, 2020
Read moreHow nearby galaxies form their stars
The star-formation activity of typical, nearby galaxies is found to scale proportionally with the amount of gas present in these galaxies. This points to the net gas supply from cosmic distances as the main driver of galactic star formation.
Dec 22nd, 2020
Read moreLooking for dark matter near neutron stars with radio telescopes
The targets of this search were two nearby neutron stars known to have strong magnetic fields, as well as the Milky Way's center, which is estimated to host half a billion neutron stars. Since no signal was seen, the team was able to impose the strongest limits to date on axion dark matter particles of a few micro electron-volt mass.
Dec 21st, 2020
Read moreKey building block for organic molecules discovered in meteorites
Scientists have confirmed the presence in meteorites of a key organic molecule which may have been used to build other organic molecules, including some used by life. The discovery validates theories of the formation of organic compounds in extraterrestrial environments.
Dec 18th, 2020
Read moreColliding stars reveal fundamental properties of matter and space-time
Combining various observational data of neutron-star collisions with nuclear-physics calculations, astrophysicists made a breakthrough in constraining the size of a typical neutron star and in measuring the expansion rate of our Universe, determined by the Hubble constant.
Dec 18th, 2020
Read moreOn the hunt for a missing giant black hole
Despite searching with the Chandra X-ray Observatory and Hubble Space Telescope, astronomers have no evidence that a distant black hole estimated to weigh between 3 billion and 100 billion times the mass of the sun is anywhere to be found. This missing black hole should be in the enormous galaxy in the center of the galaxy cluster Abell 2261, which is located about 2.7 billion light-years from Earth.
Dec 18th, 2020
Read moreSmart fabric collects space dust on International Space Station
A smart fiber being tested on the International Space Station could be used to develop space dust telescopes and allow astronauts to feel through their pressurized suits.
Dec 17th, 2020
Read moreLongest intergalactic gas filament discovered
Astrophysicists have for the first time observed a gas filament with a length of 50 million light years. Its structure is strikingly similar to the predictions of computer simulations.
Dec 17th, 2020
Read moreAstronomers detect possible radio emission from exoplanet
By monitoring the cosmos with a radio telescope array, an international team of scientists has detected radio bursts emanating from the constellation Booetes. The signal could be the first radio emission collected from a planet beyond our solar system.
Dec 16th, 2020
Read moreA pair of lonely planet-like objects born like stars
Astronomers discovered an exotic binary system composed of two young planet-like objects, orbiting around each other from a very large distance. Although these objects look like giant exoplanets, they formed in the same way as stars, proving that the mechanisms driving star formation can produce rogue worlds in unusual systems deprived of a Sun.
Dec 16th, 2020
Read moreResearchers identify where giant jets from black holes discharge their energy
New study determines that black holes discharge the energy in their plasma jets much farther away from the black hole's center than previously thought, resolving long-standing debate and offering clues to jet formation and structure.
Dec 15th, 2020
Read moreFertilizer made from urine could enable space agriculture
Researchers report a cheap and efficient method to make liquid fertilizer (ammonia) from simplified artificial urine, serving an ideal dual purpose of growing food and treating waste.
Dec 15th, 2020
Read moreThe farthest galaxy in the universe
Chemical signatures give away the distance to the most distant galaxy.
Dec 15th, 2020
Read moreNo longer 'faster than permitted by our galaxy'...
Physicists have resolved a long-lasting discrepancy between the measured velocities of interstellar oxygen atoms and other elements in our galaxy: a difference of 380 km/s, which astrophysical measurements of X-ray absorption by oxygen atoms gave, had given astrophysicists a headache.
Dec 14th, 2020
Read moreCan pizza help address the dark matter mystery?
Researchers developed a novel multiple-cell cavity design, dubbed 'pizza cavity'. Just like pizzas are cut into several slices, multiple partitions vertically divide the cavity volume into identical pieces (cells). With almost no volume to be lost, this multiple-cell haloscope enables the meaningful output of high-frequency region scanning.
Dec 11th, 2020
Read more