PARIS, 15 September 2020 (ESA PR) — Today ESA awarded a €129.4 million contract covering the detailed design, manufacturing and testing of Hera, the Agency’s first mission for planetary defence. This ambitious mission will be Europe’s contribution to an international asteroid deflection effort, set to perform sustained exploration of a double asteroid system.
WASHINGTON (NASA PR) — With 2020 more than half way through, NASA is gearing up for a busy rest of the year and 2021.
Following the recent successful launch of a Mars rover and safely bringing home astronauts from low-Earth orbit aboard a new commercial spacecraft, NASA is looking forward to more exploration firsts now through 2021.
LAUREL, Md. (NASA PR) — Nearly two decades ago, a near-Earth asteroid was discovered to have a moon and the binary system was given the name “Didymos”—Greek for “twin,” a loose description of the larger main body and the smaller orbiting moon, which became unofficially known as Didymos B.
In 2022, that moon will be the target of NASA’s Double Asteroid Redirection Test (DART), the first full-scale demonstration of an asteroid deflection technology for planetary defense. The DART spacecraft will execute a kinetic impact, deliberately crashing into the asteroid to change its motion in space. To mark this historic mission, Didymos B is getting an official name of its own: Dimorphos.
NICE, France (ESA PR) — Queen guitarist and astrophysicist Brian May has teamed up with asteroid researchers to investigate striking similarities and a puzzling difference between separate bodies explored by space probes. The research team ran a supercomputer-based ‘fight club’ involving simulated large asteroid collisions to probe the objects’ likely origins. Their work is reported in Nature Communications.
NASA’s planetary defense mission to deflect a small asteroid continues to move toward a February 2022 launch date while holding to its $313.9 million budget, according to a new assessment by the Government Accountability Office (GAO).
The Double Asteroid Redirection Test (DART) will fly to the binary asteroid Didymos and impact the smaller of the two bodies to assess techniques for deflecting dangerous asteroids on collision courses with Earth.
REDMOND, Wash., May 19, 2020 (Aerojet Rocketdyne PR) – The dual chemical and electric propulsion systems for NASA’s Double Asteroid Redirection Test (DART) were recently delivered by Aerojet Rocketdyne to the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland.
The chemical propulsion system and the electric propulsion Xenon feed system have been undergoing assembly and integration onto the spacecraft structure at Aerojet Rocketdyne’s facility in Redmond, Washington, since August 2019.
PARIS (ESA PR) — Hera – named after the Greek goddess of marriage – will be humankind’s first probe to rendezvous with a binary asteroid system, a little understood class making up around 15% of all known asteroids.
NASA will first perform a kinetic impact on the smaller of the two Didymos asteroids, then Hera will follow-up with a detailed post-impact survey will turn this grand-scale experiment into a well-understood and repeatable planetary defence technique. Being able to deflect the orbit of an incoming body in this way could one day help prevent a devastating strike on Earth.
This ‘hardware-in-the-loop’ testing is being performed by GMV in Spain, responsible for developing the Hera mission’s guidance, navigation and control system.
Three years after the last ESA Council Meeting at Ministerial Level, held in Lucerne, Switzerland, government representatives from the 22 Member States met in Seville, Spain, on 27 and 28 November 2019 and committed a total of almost 14.4 billion euro [$15.87 billion] for space programmes over the next few years.
Germany is contributing 3.3 billion euro [$3.6 billion] to ESA programmes focusing on Earth observation, telecommunications, technological advancement and commercialisation / NewSpace.
At 22.9 percent, Germany is now ESA’s largest contributor, followed by France (18.5 percent, 2.66 billion euro), Italy (15.9 percent, 2.28 billion euro) and the United Kingdom (11.5 percent, 1.65 billion euro).
The ESA Council Meeting at Ministerial Level is the highest political decision-making body, and it defines the content and financial framework for ESA’s space programmes every two to three years.
Hera will be humanity’s first-ever spacecraft to visit a double asteroid, the Didymos binary system. First, NASA will crash its DART spacecraft into the smaller asteroid – known as Didymoon – before ESA’s Hera comes in to map the resulting impact crater and measure the asteroid’s mass.
Hera will carry two CubeSats on board, which will be able to fly much closer to the asteroid’s surface, carrying out crucial scientific studies, before touching down. Hera’s up-close observations will turn asteroid deflection into a well-understood planetary defence technique.
NOORDWIJK, Netherlands (ESA PR) — Having spent much of the 21st century developing planetary defence techniques, Apollo astronaut Rusty Schweickart is a strong supporter of ESA’s proposed Hera mission. In general, when it comes to asteroid deflection, he says, two spacecraft are better than one.
ROME (ESA PR) — Asteroid researchers and spacecraft engineers from the US, Europe and around the world will gather in Rome next week to discuss the latest progress in their common goal: an ambitious double-spacecraft mission to deflect an asteroid in space, to prove the technique as a viable method of planetary defence.
This combined mission is known as the Asteroid Impact Deflection Assessment, or AIDA for short. Its purpose is to deflect the orbit of the smaller body of the double Didymos asteroids between Earth and Mars through an impact by one spacecraft. Then a second spacecraft will survey the crash site and gather the maximum possible data on the effect of this collision.
by Justyna Surowiec
Johns Hopkins Applied Physics Laboratory
The Double Asteroid Redirection Test (DART) – NASA’s first mission to demonstrate a planetary defense technique – will get one chance to hit its target, the small moonlet in the binary asteroid system Didymos. The asteroid poses no threat to Earth and is an ideal test target: measuring the change in how the smaller asteroid orbits about the larger asteroid in a binary system is much easier than observing the change in a single asteroid’s orbit around the Sun. Work is ramping up at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, and other locations across the country, as the mission heads toward its summer 2021 launch – and attempts to pull off a feat so far seen only in science fiction films.