Video: Drone test of Hera mission's asteroid radar
Tuesday, 13 April 2021 14:21
This drone hauled a model of the Juventas CubeSat high into the air, as a practical test of the antennas designed to perform the first radar sounding of the interior of an asteroid.
The shoebox-sized Juventas will be transported to the Didymos double-asteroid system by ESA's Hera mission. Once it flies freely in space, Juventas will deploy a cross antenna to perform a low-frequency radar scan up to 100 m deep within the smaller of the two asteroids, Dimorphos. Such low frequencies result in long wavelengths of around 6 m, too long for most indoor measurement facilities.
"To verify the antenna characteristics, we performed this aerial test with the support of the Hexapilots drone company," notes Martin Laabs of the Chair for Radio Frequency and Photonics Engineering of Technical University Dresden in Germany.
"For the most accurate measurements of the antennas' radiation properties, they had to be as far away as possible from other objects, so the Juventas model was hung 10 m down from the drone, which was flown up to 50 m into the sky.
Astranis secures $250 million to accelerate small GEO satellite development
Tuesday, 13 April 2021 14:15
TAMPA, Fla. — Astranis, a startup developing small geostationary satellites, has raised $250 million in a funding round that values the company at $1.4 billion.
Funds managed by BlackRock, the world’s largest asset manager, led the Series C financing round.
Josef Aschbacher and Simonetta di Pippo discuss space debris
Tuesday, 13 April 2021 13:03
Josef Aschbacher and Simonetta di Pippo discuss space debris
Telesat raising $500 million in debt for Lightspeed broadband network
Tuesday, 13 April 2021 12:41
TAMPA, Fla. — Canadian satellite operator Telesat plans to raise $500 million with a bond to help fund its $5 billion Lightspeed broadband constellation.
The senior secured notes due 2026 will be issued around April 27 as part of a debt package that will fund 60% of the project’s cost, with the remaining 40% financed through equity.
Popping pills in space: Helping astronauts manage pain or sickness on crewed missions
Tuesday, 13 April 2021 12:30
And you think you've had a bad head cold.
Getting sick in space is no joke. You're stuck, surrounded by the most advanced equipment in the world, most of which is useless if you need a medicine you didn't think to bring.
Even taking a pill has its problems as the constant radiation breaks them down.
Professor Volker Hessel is a researcher at the University of Adelaide who has sent medicine up to the International Space Station (ISS) to test how pills survive in space.
The plan is to understand how we can make space drugs that can last the 3-year trip to Mars.
In space, no one can hear you sneeze
Astronauts are extremely fit for a reason. Space is incredibly stressful to human bodies. Microgravity means astronauts lose 1–2% of their bone mass each month.
Radiation also changes astronaut DNA.
NASA delays Mars helicopter flight again for software update
Tuesday, 13 April 2021 12:28
NASA has postponed the flight of the Mars helicopter Ingenuity, the first controlled flight on another planet, to work through a software problem.
The flight had been planned for Thursday and then delayed to Sunday. NASA didn't immediately set a new target date for the flight.
"Our best estimate of a targeted flight date is fluid right now, but we are working toward achieving the NASA will continue working with Russia on space despite China plan
Tuesday, 13 April 2021 12:28
Russia and NASA will continue to cooperate in space in the near future, even as Russia moves to work with China on lunar exploration, experts said.
Russia and China announced March 9 they will cooperate on China's planned International Scientific Lunar Station, while the United States will have no involvement in the Chinese space program under a law passed in 2011.
But ultimately China sets up expert advisory committee for lunar samples
Tuesday, 13 April 2021 12:28
China has set up an expert committee for lunar samples, the China National Space Administration (CNSA) said Tuesday.
According to the regulations on lunar sample management, the CNSA established the committee as an expert advisory institution for the management of lunar samples.
The committee aims to give full play to the scientific value of lunar samples and standardize their manage Lavrov calls for talks on binding treaty to prohibit weapons in space
Tuesday, 13 April 2021 12:28
Russia has called for talks to create a legally binding international instrument that would ban the deployment of any type of weapons in space, Russian Foreign Minister Sergey Lavrov said on the 60th anniversary of Yuri Gagarin's historic space flight.
The anniversary of the first Soviet cosmonaut's flight, marking the beginning of humanity's space era, is celebrated every year in Russia a China to develop aerospace as strategic emerging industry
Tuesday, 13 April 2021 12:28
China will continue to exert great efforts to boost aerospace as a strategic emerging industry in the next five years, a senior aerospace official said.
The China National Space Administration (CNSA) is drawing up a plan for the country's space development during the 14th Five-Year Plan period (2021-2025), said Zhang Kejian, head of the CNSA.
During this period, China will promote pr Russia space chief blasts US for omitting Gagarin in post
Tuesday, 13 April 2021 12:28
The head of Russia's space agency used strong language to criticise US State Department members for failing to mention Yuri Gagarin in a post marking 60 years since his historic spaceflight.
On Monday, Russia led by President Vladimir Putin marked the 60th anniversary of the legendary flight that made Gagarin the first human in orbit.
The US State Department issued a Facebook post commem Blue Origin rocket test will monitor capsule access by humans
Tuesday, 13 April 2021 12:28
Jeff Bezos' space company, Blue Origin, plans to launch Wednesday morning from Texas what may be the last test flight for its New Shepard rocket before it carries people later this year. But people will be getting into and out of the capsule atop the 60-foot-high rocket as part of the test.
Liftoff is planned for 11:15 a.m. EDT from the company's spaceport near Van Horn, about 120 miles so Work progresses toward Ingenuity's First Flight on Mars
Tuesday, 13 April 2021 12:28
The Ingenuity team has identified a software solution for the command sequence issue identified on Sol 49 (April 9) during a planned high-speed spin-up test of the helicopter's rotors. Over the weekend, the team considered and tested multiple potential solutions to this issue, concluding that minor modification and reinstallation of Ingenuity's flight control software is the most robust path for Novel theory addresses centuries-old physics problem
Tuesday, 13 April 2021 12:28
The "three-body problem," the term coined for predicting the motion of three gravitating bodies in space, is essential for understanding a variety of astrophysical processes as well as a large class of mechanical problems, and has occupied some of the world's best physicists, astronomers and mathematicians for over three centuries. Their attempts have led to the discovery of several important fi How NASA's Roman Space Telescope will uncover lonesome black holes
Tuesday, 13 April 2021 12:28
NASA's Nancy Grace Roman Space Telescope will provide an unprecedented window into the infrared universe when it launches in the mid-2020s. One of the mission's planned surveys will use a quirk of gravity to reveal thousands of new planets beyond our solar system.
The same survey will also provide the best opportunity yet to definitively detect solitary small black holes for the first time