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Week in images: 31 March - 04 April 2025
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By European Space Agency
Week in images: 21-25 April 2025
Discover our week through the lens
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By NASA
Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam More Archives Conference Schedules Style Guide 2 min read
2025 EGU Hyperwall Schedule
EGU General Assembly, April 27 – May 2, 2025
Join NASA in the Exhibit Hall (Booth #204) for Hyperwall Storytelling by NASA experts. Full Hyperwall Agenda below.
MONDAY, APRIL 28
10:15 – 10:30 AM —— PACE —— Ivona Cetinic 3:45 – 4:00 PM —— Science Explorer (SciX): Accelerating the Discovery of NASA Science —— Mike Kurtz 4:00 – 4:15 PM —— Juno’s Extended Vision in its Extended Mission —— Glenn Orton 6:05 – 6:20 PM —— Getting the Big Picture with Global Precipitation —— George Huffman 6:20 – 6:35 PM —— Exploring Europa with Europa Clipper —— Jonathan Lunine TUESDAY, APRIL 29
10:15 – 10:30 AM —— Science Explorer (SciX): Accelerating the Discovery of NASA Science —— Jennifer Lynn Bartlett 10:30 – 10:45 AM —— From ESTO to PACE, A CubeSat’s Journey to Space —— Brent McBride 12:30 – 2:00 PM —— Ask Me Anything with NASA Scientists —— Informal Office Hours 3:45 – 4:00 PM —— Exoplanets (Virtual) —— Jonathan H. Jiang 4:00 – 4:15 PM —— Scattering of Realistic Hydrometeors for Precipitation Remote Sensing ——Kwo-Sen Kuo 6:05 – 6:20 PM —— Space Weather Center of Excellence CLEAR: All-CLEAR SEP Forecast —— Lulu Zhao WEDNESDAY, APRIL 30
10:15 – 10:30 AM —— SPEXone on PACE: First year in Orbit —— Otto Hasekamp 12:30 – 2:00 PM —— Ask Me Anything with NASA Scientists —— Informal Office Hours 3:45 – 4:00 PM —— Science Explorer (SciX): Accelerating the Discovery of NASA Science —— Jennifer Lynn Bartlett 4:00 – 4:15 PM —— Scattering of Realistic Hydrometeors for Precipitation Remote Sensing ——Kwo-Sen Kuo 6:05 – 6:20 PM —— Ship Tracks Tell the Story of Climate Forcing by Aerosols through Clouds —Tianle Yuan 6:20 – 6:35 PM —— The Excitement of Mars Exploration —— Jonathan Lunine 6:35 – 6:50 PM —— Using NASA Earth Observations for Disaster Response —— Kristen Okorn THURSDAY, MAY 1
10:15 – 10:30 AM —— Getting the Big Picture with Global Precipitation —— George Huffman 3:45 – 4:00 PM —— PACE —— Morgaine McKibben 4:00 – 4:15 PM —— Using AI to Model Global Clouds Better Than Current GCRMs —— Tianle Yuan 6:05 – 6:20 PM —— Science Explorer (SciX): Accelerating the Discovery of NASA Science —— Mike Kurtz Share
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Last Updated Apr 24, 2025 Related Terms
Earth Science View the full article
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By NASA
The asteroid Donaldjohanson as seen by the Lucy Long-Range Reconnaissance Imager (L’LORRI). This is one of the most detailed images returned by NASA’s Lucy spacecraft during its flyby. This image was taken at 1:51 p.m. EDT (17:51 UTC), April 20, 2025, near closest approach, from a range of approximately 660 miles (1,100 km). The spacecraft’s closest approach distance was 600 miles (960 km), but the image shown was taken approximately 40 seconds beforehand. The image has been sharpened and processed to enhance contrast.NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab NASA’s Lucy spacecraft took this image of the main belt asteroid Donaldjohanson during its flyby on April 20, 2025, showing the elongated contact binary (an object formed when two smaller bodies collide). This was Lucy’s second flyby in the spacecraft’s 12-year mission.
Launched on Oct. 16, 2021, Lucy is the first space mission sent to explore a diverse population of small bodies known as the Jupiter Trojan asteroids. These remnants of our early solar system are trapped on stable orbits associated with – but not close to – the giant planet Jupiter. Lucy will explore a record-breaking number of asteroids, flying by three asteroids in the solar system’s main asteroid belt, and by eight Trojan asteroids that share an orbit around the Sun with Jupiter. April 20, 2025 marked Lucy’s second flyby. The spacecraft’s next target is Trojan asteroid Eurybates and its satellite Queta in Aug. 2027.
Lucy is named for a fossilized skeleton of a prehuman ancestor. This flyby marked the first time NASA sent a spacecraft to a planetary body named after a living person. Asteroid Donaldjohanson was unnamed before becoming a target. The name Donaldjohanson was chosen in honor of the paleoanthropologist who discovered the Lucy fossil, Dr. Donald Johanson.
Learn more about Lucy’s flyby of asteroid Donaldjohanson.
Image credit: NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab
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