PASADENA, Calif. — The faint dwarf galaxies in a nearby galaxy group seem to have missed the memo. Instead of being dispersed evenly around the group’s most massive galaxy, which…
Category: Space
Neutrinos hint the sun has more carbon and nitrogen than previously thought
After two decades of debate, scientists are getting closer to figuring out exactly what the sun — and thus the whole universe — is made of. The sun is mostly…
New Gaia data paint the most detailed picture yet of the Milky Way
1.6 billion stars. 11.4 million galaxies. 158,000 asteroids. One spacecraft. The European Space Agency’s Gaia space observatory, which launched in 2013, has long surpassed its goal of charting more than…
A celestial loner might be the first known rogue black hole
A solitary celestial object — more massive than the sun, yet far smaller — is wandering the galaxy a few thousand light-years from Earth. It might be the first isolated…
Information energy accounts for dark energy, resolves Hubble tension, avoids the ‘big chill,’ and is falsifiable
Stellar heated gas and dust in the Centaurus-A galaxy. Credit: NASA Hubble. Stellar heated gas and dust has an entropy, or information content, with an equivalent energy of 1070 joules,…
New Gaia data paint the most detailed picture yet of the Milky Way
1.6 billion stars. 11.4 million galaxies. 158,000 asteroids. One spacecraft. The European Space Agency’s Gaia space observatory, which launched in 2013, has long surpassed its goal of charting more than…
Samples of the asteroid Ryugu are scientists’ purest pieces of the solar system
Samples of the asteroid Ryugu are the most pristine pieces of the solar system that scientists have in their possession. A new analysis of Ryugu material confirms the porous rubble-pile…
A newfound, oddly slow pulsar shouldn’t emit radio waves — yet it does
Astronomers have added a new species to the neutron star zoo, showcasing the wide diversity among the compact magnetic remains of dead, once-massive stars. The newfound highly magnetic pulsar has…
The Solar Orbiter spacecraft spotted a ‘hedgehog’ on the sun
A spacecraft has spied a spiky “hedgehog” on the sun and watched a solar flare in ways never done before. The Solar Orbiter, a collaboration between the European Space Agency…
Astrophysicists simulate a fuzzy dark matter galactic halo
Density slices zooming into a fuzzy dark matter halo. The plot on the right shows the reconstructed fuzzy dark matter wave function with self-consistent interference pattern and central solitonic core…
