Copernical Team
NASA Webb micrometeoroid mitigation update
Micrometeoroid strikes are an unavoidable aspect of operating any spacecraft. NASA's James Webb Space Telescope was engineered to withstand continual bombardment from these dust-sized particles moving at extreme velocities, to continue to generate groundbreaking science far into the future.
"We have experienced 14 measurable micrometeoroid hits on our primary mirror, and are averaging one to two per month, as anticipated. The resulting optical errors from all but one of these were well within what we had budgeted and expected when building the observatory," said Mike Menzel, Webb lead mission systems engineer at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "One of these was higher than our expectations and prelaunch models; however, even after this event our current optical performance is still twice as good as our requirements."
To ensure all parts of the observatory continue to perform at their best, NASA convened a working group of optics and micrometeoroid experts from NASA Goddard's Webb team, the telescope's mirror manufacturer, the Space Telescope Science Institute, and the NASA Meteoroid Environment Office at NASA's Marshall Space Flight Center in Huntsville, Alabama.
JAXA's ambitious mission to Phobos will even have European-built rover
Japan and Germany have a history of collaboration in scientific and technological endeavors. The countries have a Joint Committee on Cooperation in Science Technology that has met many times over the decades. Both countries have advanced, powerful economies and sophisticated technological know-how, so it makes sense they'd collaborate on scientific activities.
This time, their cooperation concerns a small, potato-shaped chunk of rock: Mars' moon Phobos.
In 2024, the Japanese Aerospace Exploration Agency (JAXA) plans to launch the Martian Moons eXploration (MMX) mission to Phobos and Deimos. Deimos will get the fly-by treatment, but JAXA has more ambitious ideas for Phobos.
NOAA adopts Finland's CubeSat-proven space weather monitor
An advanced X-ray monitoring instrument tested for space aboard an ESA CubeSat will serve as an operational space weather payload on the U.S. National Oceanic and Atmospheric Administration's Space Weather Next Lagrange 1 Series satellite, currently planned for launch in 2028, which will operate 1.5 million km from Earth, keeping watch for eruptions from our sun.
First ignition for ESA’s low-cost, reusable rocket engine
With first ignition, ESA’s reusable, next-generation Prometheus rocket engine development project has taken a step toward hot fire testing. Ongoing work at prime contractor ArianeGroup’s facilities in Vernon, France is being carried out using the Themis reusable stage demonstrator as a test bed.
The 100-ton thrust class Prometheus features extensive use of new materials and manufacturing techniques designed to reduce its cost to just a tenth of Ariane 5’s Vulcain 2, an upgraded version of which – Vulcain 2.1 – powers the core stage of Ariane 6.
Shaun the Sheep mission patch
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Shaun the Sheep mission patch Week in images: 14-18 November 2022
Week in images: 14-18 November 2022
Discover our week through the lens
How Webb's NIRSpec instrument opened up 200 windows to our origins
Astronomy is driven by big questions, and they don’t come much bigger than wondering how the first stars and galaxies began to form – eventually giving rise to our own existence.
Earth from Space: Sharm El-Sheikh, Egypt
World leaders, policymakers and delegates from nearly 200 countries have convened in Sharm El-Sheikh over the past two weeks at the COP27 UN Climate Summit. Today we take a closer look at the Egyptian city through the eyes of Copernicus Sentinel-2.
Putting a value on ESA’s Aeolus wind mission
Over the last four years, ESA’s Aeolus mission has been delivering unique profiles of Earth’s winds from space, improving operational weather forecasts, climate models and more – all showing that its novel laser technology is advancing science and being used for important practical applications. Adding to the list of Aeolus’ successes, a recent report highlights that the mission has also brought economics benefits to Europe to the tune of €3.5 billion, and that a follow-on mission could more than double this figure.
Navigating the sea from space with innovative technologies
Shipping is the most energy efficient form of transport, and more than 80% of goods traded globally are carried via the oceans, with a doubling in volume during the last quarter of a century. Recognising the global need for seamless maritime navigation, ESA’s Navigation Innovation and Support Programme, NAVISP – inventing the future of navigation with more than 200 R&D projects initiated to date – is therefore focused not only on the land but also the sea.