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By European Space Agency
Video: 00:09:30 In Tenerife, Spain, stands a unique duo: ESA’s Izaña-1 and Izaña-2 laser-ranging stations. Together, they form an optical technology testbed of the European Space Agency that takes the monitoring of space debris and satellites to a new level while maturing new technologies for commercialisation.
Space debris is a threat to satellites and is rapidly becoming a daily concern for satellite operators. The Space Safety Programme, part of ESA Operations, managed from ESOC in Germany, helps develop new technologies to detect and track debris, and to prevent collisions in orbit in new and innovative ways.
One of these efforts takes place at the Izaña station in Tenerife. There, ESA and partner companies are testing how to deliver precise orbit data on demand with laser-based technologies. The Izaña-2 station was recently finalised by the German company DiGOS and is now in use.
To perform space debris laser ranging, Izaña-2 operates as a laser transmitter, emitting high-power laser pulses towards objects in space. Izaña-1 then acts as the receiver of the few photons that are reflected back. The precision of the laser technology enables highly accurate data for precise orbit determination, which in turn is crucial for actionable collision avoidance systems and sustainable space traffic management.
With the OMLET (Orbital Maintenance via Laser momEntum Transfer) project, ESA combines different development streams and possibilities for automation to support European industry with getting two innovative services market-ready: on-demand ephemeris provision and laser-based collision avoidance services for end users such as satellite operators.
A future goal is to achieve collision avoidance by laser momentum transfer, where instead of the operational satellite, the piece of debris will be moved out of the way. This involves altering the orbit of a piece of space debris slightly by applying a small force to the object through laser illumination.
The European Space Agency actively supports European industry in capitalising on the business opportunities that not only safeguard our satellites but also pave the way for the sustainable use of space.
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 3 min read
Curiosity Blog, Sols 4634-4635: A Waiting Game
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on Aug. 18, 2025 — Sol 4633, or Martian day 4,633 of the Mars Science Laboratory mission — at 12:39:47 UTC. NASA/JPL-Caltech Written by Lucy Thompson, Planetary Scientist and APXS Team Member, University of New Brunswick, Canada
Earth Planning Date: Monday, Aug. 18, 2025
The downlink data from our weekend activities arrived on Earth as we started planning this morning. As the APXS payload uplink and downlink lead, I assess the downlink data to ensure that our observations executed and that the instrument is healthy before we can proceed with the day’s activities. We also need that downlink data to assess which targets we can safely touch with Curiosity’s arm, to place APXS and MAHLI to analyze chemistry and closeup textures, respectively, as well as target for Mastcam and ChemCam, and plan the next drive. Because of the relatively late downlink, we all waited patiently for the necessary data to be processed before we could really start to plan in earnest.
It is always exciting to see our new parking spot and the view in front of the rover. Today was no exception. The drive executed as planned and we are on stable ground, which will enable us to unstow the arm for contact science with APXS and MAHLI.
We selected a representative bedrock patch (“Gil”) that was large enough and smooth enough to brush for dust removal, and to place APXS and MAHLI on. ChemCam will also analyze this target with LIBS, and Mastcam will capture a documentation image. The bedrock at this location is representative of an intermediate zone between the large resistant ridges and hollows that comprise the boxwork terrain that we are currently exploring. Mastcam will image the wall of a prominent resistant ridge that we are driving to (“Río Frío”), as well as a narrow, sand-filled trough (“Cusi Cusi”). The remote long-distance imaging capabilities of ChemCam will be used to look at the base of the Mishe Mokwa butte, off to the east.
Observations to monitor the atmosphere are also planned before we drive away from this location. They include a Navcam large dust-devil survey and suprahorizon movie, and a Mastcam tau observation to observe dust in the atmosphere. After the touch (and targeted science) part of this touch-and-go plan, the drive (go part) should take us about 36 meters (about 118 feet) to the wall of Río Frío. (see associated image).
After the drive, we will document the ground beneath the rover’s wheels with MARDI before some untargeted science. Mastcam will again image Río Frío in early morning light, trying to highlight structures and veins that might be present, and ChemCam will utilize their autonomous targeting capabilities to analyze a bedrock target in our new workspace. Two more atmospheric observations are also squeezed in before we hand over to the next plan: a Navcam cloud-altitude observation and line-of-sight scan.
Standard REMS, DAN and RAD activities round out this jam-packed plan. The downlink was well worth the wait!
Want to read more posts from the Curiosity team?
Visit Mission Updates
Want to learn more about Curiosity’s science instruments?
Visit the Science Instruments page
NASA’s Mars rover Curiosity at the base of Mount Sharp NASA/JPL-Caltech/MSSS Share
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Last Updated Aug 19, 2025 Related Terms
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By NASA
Explore This Section Science For Educators NUBE: New Card Game Helps… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 4 min read
NUBE: New Card Game Helps Learners Identify Cloud Types Through Play
Different clouds types can have different effects on our weather and climate, which makes identifying cloud types important – but learning to identify cloud types can be tricky! Educational games make the learning process easier and more enjoyable for learners of all ages and create an opportunity for families and friends to spend quality time together.
The NASA Science Activation Program’s NASA Earth Science Education Collaborative (NESEC) and the Queens Public Library co-developed a new Global Learning & Observations to Benefit the Environment (GLOBE) card game called NUBE (pronounced noo-beh) – the Spanish word for cloud. During this fun, interactive game, players match cards by cloud type or sky color – with 11 cloud types and 5 shades of blue (in real life, sky color can be an indication of how many aerosols are in the atmosphere). There are also special cards in the deck, such as Rainmakers, which change the order of play; Obscurations, which require the next player to draw two cards; and Mystery cards, which require players to give hints while other players guess the cloud type. By playing the game, participants practice learning the names of clouds while they begin to appreciate the differences in cloud type and sky color.
NESEC is collaborating with another NASA Science Activation project team – NASA@ My Library (NAML, led by the Space Science Institute, SSI – to get the game into library programs. NAML recruited and is distributing sets of two or four card decks to 292 U.S. libraries. Participating libraries are located in 45 states, with a large number (>50%) serving rural communities. SSI also promoted the opportunity to its network of libraries and co-presented a webinar with NESEC for interested libraries. Library applications described how they plan to use the game with their patrons, including programs for audiences ranging from kids to seniors related to weather and safety programs, citizen science clubs, home school groups, summer reading, game nights, circulating kits and more. Libraries that receive NUBE commit to use the game in at least one program and complete a short evaluation survey.
NUBE evolved through several iterations as staff from several Queens Public Library branches tested the game with different age groups, from young kids to teens and adults. The game was also tested at the Challenger Center and the Center for Science, Technology, Education, & Mathematics (STEM) Teaching and Learning at Northern Arizona University. Alex Hernandez Bonifacio, an early Learning Educator at Queens Public Library reported, “It was amazing to see what kids reflected on as they were playing NUBE. For example, there was this third grader who was surprised to realize something could obscure our view of the clouds. She used to think clouds were too high in the sky for anything to block our view of them. While playing NUBE, she became very intrigued about the obscuration cards, and she realized that things closer to the ground like heavy snow could in fact block our view of the clouds!” After incorporating feedback from testers and counting the votes for different graphic design options, NUBE is now ready to be downloaded and enjoyed by all!
If you’re excited to play this awesome GLOBE Clouds card game and want to learn even more about clouds, you can download the GLOBE Observer app on your smartphone to participate in hands-on NASA scientific research – sharing observations of your environment as a citizen scientist (no citizenship required)! Learn more and discover additional resources for engaging in clouds activities with the GLOBE Observer Clouds Toolkit.
NESEC, led by the Institute for Global Environmental Strategies (IGES) and supported by NASA under cooperative agreement award number NNX16AE28A, is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn
NUBE, a GLOBE Clouds card game Share
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By NASA
A group of students huddle around two of their classmates using virtual reality headsets to get an up-close view of a rocket during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025. Credit: NASA/Chris Hartenstine NASA’s Glenn Research Center headed to the ballpark for Education Day with the Lake Erie Crushers on May 15. NASA Glenn staff showcased the science of NASA using portable wind tunnel demonstrations, virtual reality simulations, and other interactives inspired by NASA’s Artemis missions.
NASA Glenn Research Center engineers Heath Reising, far left, and Dave Saunders, far right, provide a wind tunnel demonstration to a group of aspiring STEM professionals during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025.Credit: NASA/Chris Hartenstine Guests snapped photos at an “out-of-this-world” selfie station and learned how to take the first step toward a career in the aerospace or space industry through NASA’s internship programs. The mid-day game welcomed 3,575 fans, many who came from local schools on field trips for the special day.
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By European Space Agency
The Meteosat Third Generation Sounder satellite (MTG-S) will generate a completely new type of data product, especially suited to nowcasting severe weather events. Here are five ways in which Europe’s latest weather satellite will change how we forecast weather.
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