Scientists catch exciting magnetic waves in action in the Sun's photosphere
Tuesday, 11 May 2021 10:41
Researchers have confirmed the existence of magnetic plasma waves, known as Alfvén waves, in the Sun's photosphere. The study, published in Nature Astronomy, provides new insights into these fascinating waves that were first discovered by the Nobel Prize winning scientist Hannes Alfvén in 1947.
The vast potential of these waves resides in their ability to transport energy and information over very large distances due to their purely magnetic nature. The direct discovery of these waves in the solar photosphere, the lowest layer of the solar atmosphere, is the first step towards exploiting the properties of these magnetic waves.
The ability for Alfvén waves to carry energy is also of interest for solar and plasma-astrophysics as it could help explain the extreme heating of the solar atmosphere—a mystery that has been unsolved for over a century.
Elusive waves
Alfvén waves form when charged particles (ions) oscillate in response to interactions between magnetic fields and electrical currents.
Within the solar atmosphere bundles of magnetic fields, known as solar magnetic flux tubes, can form.
Cabana to succeed Jurczyk as NASA associate administrator
Tuesday, 11 May 2021 10:41
WASHINGTON — Bob Cabana, a former astronaut and longtime head of NASA’s Kennedy Space Center, will become NASA associate administrator later this month, replacing the retiring Steve Jurczyk.
In separate announcements May 10, NASA said that Jurczyk will retire from the agency effective May 14.
NASA says demand for private ISS missions exceeds flight opportunities
Tuesday, 11 May 2021 10:00
WASHINGTON — NASA says it’s seeing strong interest from companies proposing private astronaut missions to the International Space Station, with the demand for such missions exceeding the agency’s ability to accommodate them.
NASA announced May 10 that it had finalized an agreement with Axiom Space for that company’s first crewed mission to the station, scheduled for launch no earlier than January 2022.
Aircraft issue could delay resumption of SpaceShipTwo test flights
Tuesday, 11 May 2021 07:42
WASHINGTON — Virgin Galactic said May 10 that while it believes it corrected a problem with its SpaceShipTwo suborbital spaceplane that aborted a test flight five months ago, the resumption of those test flights could be further delayed by a problem with the plane that carries SpaceShipTwo aloft.
Flying at up to Mach 16 could become reality with UCF's developing propulsion system
Tuesday, 11 May 2021 01:54
University of Central Florida researchers are building on their technology that could pave the way for hypersonic flight, such as travel from New York to Los Angeles in under 30 minutes.
In their latest research published in the journal Proceedings of the National Academy of Sciences, the researchers discovered a way to stabilize the detonation needed for hypersonic propulsion by creating NASA, Axiom Agree to First Private Astronaut Mission on Space Station
Tuesday, 11 May 2021 01:54
NASA and Axiom Space have signed an order for the first private astronaut mission to the International Space Station to take place no earlier than January 2022.
"We are excited to see more people have access to spaceflight through this first private astronaut mission to the space station," said Kathy Lueders, associate administrator for human exploration and operations at NASA Headquarters Want to become a space tourist
Tuesday, 11 May 2021 01:54
Billionaire Jeff Bezos's space launch company Blue Origin has announced it will sell its first flights into microgravity to the highest bidder.
Blue Origin and its two greatest competitors in the "space tourism" field, SpaceX and Virgin Galactic, claim to be advancing humanity through the "democratisation" of space. But these joyrides aren't opening up access to space for all.
At fac In the emptiness of space, Voyager I detects plasma 'hum'
Tuesday, 11 May 2021 01:54
Voyager 1 - one of two sibling NASA spacecraft launched 44 years ago and now the most distant human-made object in space - still works and zooms toward infinity.
The craft has long since zipped past the edge of the solar system through the heliopause - the solar system's border with interstellar space - into the interstellar medium. Now, its instruments have detected the constant drone of NASA's OSIRIS-REx Spacecraft Heads for Earth with Asteroid Sample
Tuesday, 11 May 2021 01:54
After nearly five years in space, NASA's Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft is on its way back to Earth with an abundance of rocks and dust from the near-Earth asteroid Bennu.
On Monday, May 10, at 4:23 p.m. EDT the spacecraft fired its main engines full throttle for seven minutes - its most significant maneuver si VIPER Hits the SLOPEs
Tuesday, 11 May 2021 01:54
Before NASA's next lunar rover paves the way for long-term human exploration of the Moon, it must first pass a series of rigorous mobility tests along the banks of Lake Erie.
The Simulated Lunar Operations Laboratory, or SLOPE Lab, at NASA's Glenn Research Center in Cleveland is home to multiple sandboxes that mimic the lunar and Martian terrain to evaluate the traction performance and lim First ever discovery of methanol in a warm planet-forming disk
Tuesday, 11 May 2021 01:54
An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have originated in the cold gas clouds from which the star and the disk formed.
Thus, the methanol is inherited. If that is common, it could give the formation of life elsewhere How planets form controls elements essential for life
Tuesday, 11 May 2021 01:54
The prospects for life on a given planet depend not only on where it forms but also how, according to Rice University scientists.
Planets like Earth that orbit within a solar system's Goldilocks zone, with conditions supporting liquid water and a rich atmosphere, are more likely to harbor life. As it turns out, how that planet came together also determines whether it captured and retained Space weather is difficult to predict - with only an hour to prevent disasters on Earth
Tuesday, 11 May 2021 01:54
Recent developments at the forefront of astronomy allow us to observe that planets orbiting other stars have weather. Indeed, we have known that other planets in our own solar system have weather, in many cases more extreme than our own.
Our lives are affected by short-term atmospheric variations of weather on Earth, and we fear that longer-term climate change will also have a large impact After Chinese rocket reentry, DoD calls for countries to ‘behave responsibly’
Monday, 10 May 2021 20:38
WASHINGTON — Less than two days after parts of an uncontrolled Chinese rocket fell into the Indian Ocean, the Pentagon said allowing a large booster to free fall toward Earth is “irresponsible behavior.
Crew training begins soon for first private trip to ISS
Monday, 10 May 2021 20:08
Training of the crew for the first entirely private trip to the International Space Station (ISS) is to begin soon, Axiom Space, the company behind the flight, said Monday at a joint press conference with NASA.
Four astronauts are to be launched to the ISS in late January aboard a rocket built by another space company, Elon Musk's SpaceX.
Only one of the four—NASA veteran Michael Lopez-Alegria—has been in space before.
The other three are businessmen—Larry Conner, an American, Mark Pathy, a Canadian, and Eytan Stibbe, an Israeli.
The mission dubbed Ax-1 is to last around 10 days, said Axiom Space president and CEO Michael Suffredini.
The astronauts will work and live in the American section of the space station and plan to conduct a number of scientific experiments while in orbit.
"We'll be starting what I would call serious training next week," said Lopez-Alegria, the Ax-1 commander.
"From there the pace will pick up, and we'll all be immersed essentially full time in ISS systems and Crew Dragon training starting in the fall.