A Direct Probe of Dark Energy Interactions with a Solar System Laboratory
Nan Yu NASA Jet Propulsion Laboratory Pasadena, Calif.
Value: Approximately $125,000 Length of Study: 9 months
We propose a mission concept for direct detection of dark energy interactions with normal matter in a Solar System laboratory. Dark energy is the leading proposal to answer the question of the accelerated expansion of the Universe. This interaction must be highly suppressed to be consistent with the gravity measurements and observations we have so far, but can be probed with specifically designed experiments.
By flying unscreened atomic particles through special gravitational field regions in the Solar System and conducting double differential measurements to isolate possible dark energy interaction with the atoms, we will stand a chance to achieve a direction detection of dark energy, akin to direct detection of dark matter and gravitational waves. This could lead to a fundamental shift in our understanding of fundamental physics and our universe, stimulating a wide variety of foundational research in cosmology and particle physics.
Toronto, Ontario, April 20, 2017 — On April 24, Minister Bains will introduce the final candidates to undergo the last rounds of assessments as part of the Canadian Space Agency’s astronaut recruitment campaign.
The media is invited to attend the event. Candidates will be available for interviews onsite.
Date: April 24, 2017
Time: 10:00 a.m. (EDT)
What: Introduction of the top astronaut candidates
Who: The Honourable Navdeep Bains, Minister of Innovation, Science and Economic Development Jeremy Hansen, Canadian Space Agency astronaut Top astronaut candidates
Where: Holiday Inn Toronto – Yorkdale 3450 Dufferin Street, Toronto, ON, M6A 2V1 York Halls
First Daughter Joins International Space Station Call Promoting Women in STEM
WASHINGTON (NASA PR) — President Donald Trump, First Daughter Ivanka Trump, and NASA astronaut Kate Rubins will make a special Earth-to-space call Monday, April 24, from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station.
The 20-minute call will air live on NASA Television and stream on the agency’s website and Facebook page at 10 a.m. EDT, and will be made available to schools, museums, and other organizations across the nation and globally.
The Tianzhou-1 cargo ship successfully docked with the unoccupied Tiangong-2 space station on Saturday, Chinese media report.
Launched on Tuesday, the cargo vessel will dock twice more with the station to test different rendezvous and docking techniques. One will involve approaching Tiangong-2 from a different direction. Another will shrinking the docking time from two days to six hours.
Tianzhou-1 will later conduct China’s first refueling of a vehicle in orbit.
The success of the mission is a crucial step in China’s plan to launch a permanent space station. The core module is scheduled to launch next year, with additional modules to follow through the completion of construction in 2022.
The Orbital ATK Cygnus cargo ship was bolted into place on the International Space Station’s Earth-facing port of the Unity module at 8:39 a.m. EDT. Crew will ingress the spacecraft later today. The spacecraft will spend about three months on station before it is released in July for a destructive re-entry into the Earth’s atmosphere, disposing of several thousand pounds of trash.
DARMSTADT, Germany (ESA PR) — With more than 750 000 pieces of dangerous debris now orbiting Earth, the urgent need for coordinated international action to ensure the long-term sustainability of spaceflight is a major finding from Europe’s largest-ever conference on space debris.
Raymond Sedwick University of Maryland, College Park College Park, Md.
Value: Approximately $125,000 Length of Study: 9 months
NASA recognizes within its roadmaps (specifically TA 3.1.6) that development of aneutronic fusion (such as p-11B) reactors with direct energy conversion (>80%) would be an enabling technology to achieve low specific mass (kg/kW) through the elimination of shielding and potentially the need for dedicated radiators. In addition, material activation due to neutron capture could be avoided.
Thanks to the “Accord de Guyane” agreement signed April 21 by French and French Guianese officials, launch service provider Arianespace says it will be able to soon resume launch activity and can make up for delays by using previously scheduled downtime over the next two months.
“Now that an agreement has been reached, we are fully ready to resume our operations in [the Guiana Space Centre, or CSG],” an Arianespace official told SpaceNews via email April 21. “We aim to make up for the accumulated delays on the three campaigns that were under way, without impacting the rest of our manifest, by taking advantage of the CSG’s availability in May and most of June, since there were no launches scheduled those months.”
“We believe it will take about eight working days (after resumption of operations) to carry out the VA236 launch that was originally scheduled for March 21,” the Arianespace official added.
The company declined to say when exactly operations would resume.
Residents of the French overseas department have been striking over a lack of jobs, high crime and other problems. Save
TOKYO, 20 April 2017 (Arianespace PR) – Arianespace announced today that it will launch Horizons 3e, a satellite belonging to the Horizons joint venture owned by Intelsat (NYSE: I) and SKY Perfect JSAT. Arianespace will orbit this Boeing-built payload in the launch period starting late 2018 on an Ariane 5 from the Guiana Space Center in French Guiana.
Horizons 3e will complete Intelsat’s global EpicNG network. The high-throughput satellite’s C-band and Ku-band transponders will provide 22 Gbps+ in growth capacity for aeronautical and maritime mobility applications spanning from Asia and the Pacific to North America. Horizons 3e is also expected to support further development of specialty networks for governments. The spacecraft will weigh 6,500 kg. at liftoff.
LUXEMBOURG (Luxembourg Government PR – To promote Luxembourg as a European hub for the exploration and commercial use of space resources, the Ministry of the Economy conducted from April 9th to April 13th an economic mission headed by Luxembourg’s Crown Prince to the U.S. West Coast. The mission aimed to identify and develop new business opportunities and to promote the governmental SpaceResources.lu initiative that offers an attractive overall framework for space resource utilization related activities, including but not limited to the legal regime to provide private companies and investors with a secure legal environment as of the ownership of resources gathered in space.
It looks as if Team SpaceIL is out of the $30 million Google Lunar XPrize.
Quartzreports the Israeli team will not be able to launch its lander/rover to the moon aboard a SpaceX Falcon 9 booster until some time next year — too late to meet the end-of-2017 deadline required to win the prize.
WASHINGTON (Senate Science Committee PR) – U.S. Sen. Ted Cruz (R-Texas), chairman of the Subcommittee on Space, Science, and Competitiveness, will convene a hearing titled “Reopening the American Frontier: Reducing Regulatory Barriers and Expanding American Free Enterprise in Space” at 10:00 a.m. on Wednesday, April 26, 2017.
This hearing will examine the Commercial Space Launch Competitiveness Act signed into law in November 2015, potential regulatory barriers to address in future legislation, and ways to expand commercial opportunities for American firms in space.
• Mr. Robert Bigelow, Founder, Bigelow Aerospace • Mr. Rob Myerson, President, Blue Origin • Mr. George Whitesides, CEO, Virgin Galactic • Mr. Andrew Rush, CEO, Made in Space
* Witness list subject to change
Wednesday, April 26, 2017 10:00 a.m. Subcommittee on Space, Science, and Competitiveness
This hearing will take place in Russell Senate Office Building, Room 253. Witness testimony, opening statements, and a live video of the hearing will be available on www.commerce.senate.gov.
Jonathan Sauder NASA Jet Propulsion Laboratory Pasadena, Calif.
Amount: up to $500,000 Length of Study: 2 years
Extreme environments abound in the solar system and include the radiation around Jupiter, high surface temperatures on Mercury and Venus, and hot, high pressure environments occurring deep beneath any active planet’s surface.
Generally, the most environmentally sensitive components of a rover or spacecraft are the electronics, which will fail in heat, stop operating in extreme cold, or experience upsets when bombarded with radiation.
MOFFETT FIELD, Calif. (NASA PR) — Researchers at NASA’s Ames Research Center have developed a process for growing plants on the moon (T0140)–a method tested successfully in the lab and matured, in part, through the Flight Opportunities program.
Prior to flight tests of Ames’s Lunar Plant Habitat, no plant-based biological spaceflight experiment had ever hydrated seeds in lunar gravity. Scientists had only performed hydration of seeds at 1 g because they anticipated that the presence of bubbles or of uneven dispersion would result in inferior water distribution in lunar gravity.
Ames’s Lunar Plant Habitat addresses this challenge using a direct pressure pump that works even with air bubbles present, passing water to osmosis paper to distribute it evenly to plant seeds. The technology promises to be the first method of growing plants on the moon and is a direct response to the Decadal Survey calling for investigations into the role of plants in long-term lunar life support.
With the Lunar Plant Habitat tested successfully in ground-based experiments, Ames researchers turned to Flight Opportunities for flight tests to see if the technology would indeed work as anticipated in lunar gravity–and if not, to determine if the system’s sensors would detect the failure.
The payload first underwent parabolic flight testing in 2014. In November 2015 another round of parabolic flight tests was performed to evaluate the flight performance of its microfluidics systems under lunar gravity as well as a camera image capture and system performance evaluation.
The test flights increased the habitat’s technology readiness level (TRL) to 6, and it is now flight qualified for microgravity, low gravity, and 1 g ground and spaceflight applications.