Categories

SpaceX seeks FCC nod to build data center constellation in space

SpaceX is requesting permission to launch as many as 1 million satellites into the Earth’s orbit in order to pull off Elon Musk’s latest grand vision of putting data centers in space to do complex computing for artificial intelligence. In a filing with the Federal Communications Commission made on Jan. 30, SpaceX said it’s creating […]

NASA begins a practice countdown for its first moonshot with astronauts in more than 50 years

NASA began a two-day practice countdown Saturday leading up to the fueling of its new moon rocket, a crucial test that will determine when four astronauts blast off on a lunar flyby.

Go to Source

Powerful Milky Way stellar flares near black hole could refine galaxy center models

Deep in the frozen heart of Antarctica, the South Pole Telescope has been watching one of the most extreme neighborhoods in our galaxy, and it’s just caught something extraordinary happening there. Astronomers have detected powerful stellar flares erupting from stars near the supermassive black hole at the center of the Milky Way. These aren’t your […]

New 3D map of the sun’s magnetic interior could improve predictions of disruptive solar flares

For the first time, scientists have used satellite data to create a 3D map of the sun’s interior magnetic field, the fundamental driver of solar activity. The research, published in The Astrophysical Journal Letters, should enable more accurate predictions of solar cycles and space weather that affects satellites and power grids.

Go to Source

[…]

Bezos’s Blue Origin to ‘pause’ space tourism to focus on moon efforts

Jeff Bezos’s space company Blue Origin said Friday it would temporarily pause flights of its space tourism rocket to focus more resources on its lunar ambitions.

Go to Source

Puzzling slow radio pulses are coming from space. A new study could finally explain them

Cosmic radio pulses repeating every few minutes or hours, known as long-period transients, have puzzled astronomers since their discovery in 2022. Our new study, published in Nature Astronomy today, might finally add some clarity.

Go to Source

NASA delays the first Artemis moonshot with astronauts because of extreme cold at the launch site

NASA has delayed astronauts’ upcoming trip to the moon because of near-freezing temperatures expected at the launch site.

Go to Source

Why are Tatooine planets rare? General relativity explains why binary star systems rarely host planets

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

Go to Source

Exploration of exoplanets: A mathematical solution for investigating their atmospheres

Dr. Leonardos Gkouvelis, researcher at LMU’s University Observatory Munich and member of the ORIGINS Excellence Cluster, has solved a fundamental mathematical problem that had obstructed the interpretation of exoplanet atmospheres for decades. In a paper published in The Astrophysical Journal, Gkouvelis presents the first closed-form analytical theory of transmission spectroscopy that accounts for how atmospheric […]

Kissing the sun: Unraveling mysteries of the solar wind

Using data collected by NASA’s Parker Solar Probe during its closest approach to the sun, a University of Arizona-led research team has measured the dynamics and ever-changing “shell” of hot gas from where the solar wind originates.

Go to Source

NASA researchers probe tangled magnetospheres of merging neutron stars

New simulations performed on a NASA supercomputer are providing scientists with the most comprehensive look yet into the maelstrom of interacting magnetic structures around city-sized neutron stars in the moments before they crash. The team identified potential signals emitted during the stars’ final moments that may be detectable by future observatories.

Go to Source

[…]

New map of the Milky Way’s magnetism offers insights into cosmic evolution

A UBC Okanagan-led research project has given a group of international scientists their clearest view yet of the Milky Way’s magnetic field, revealing that it is far more complex than previously believed.

Go to Source

Burning satellites in the stratosphere: Emerging questions for climate

The sky is getting crowded. In the last few years, the number of satellite launches has increased by an order of magnitude as mega-constellations of internet-powering hardware crowd into low Earth orbit. The pace of both launching and retiring these units is creating new kinds of pollution, potentially upsetting the climate system and the protective […]

How tree rings help scientists understand disruptive extreme solar storms

Scientists have long relied on tree rings to learn about ancient solar storms—rare bursts of high-energy particles from the sun that can disrupt satellites, power grids, and communication systems across the planet. When these particles hit Earth’s atmosphere, they create a radioactive form of carbon that trees absorb and store in their wood.

Go to […]

A new method to search for ultralight dark matter with advanced optical cavities

Dark matter is a mysterious type of matter that does not emit, absorb, or reflect light, yet is predicted to account for most of the universe’s mass. While physicists have gathered extensive indirect evidence of its existence, so far dark matter has never been directly observed, thus its composition remains unknown.

Go to Source

[…]