ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST team The James Webb Space Telescope observed “starburst” galaxy NGC 4449, seen in this image released on May 29, 2024. Starbursts are intense periods of star formation usually concentrated at a galaxy’s core, but NGC 4449’s activity is much more widespread — likely [...]
From left to right, Ambassador of Peru to the United States Alfredo Ferrero Diez Canseco, Peruvian Foreign Minister Javier González-Olaechea, NASA Administrator Bill Nelson, and United States Department of State Acting Assistant Secretary in the Bureau of Oceans and International Environmental and Scientific Affairs Jennifer R. Littlejohn, pose for a photo during an Artemis Accords [...]
5 Min Read Travel The NSSC provides travel reimbursement services for all authorized Agency travel including: domestic, foreign, local, ETDY, and Change of Station (COS). References Federal Travel Regulations (FTR) Traveler Extended TDY and Taxes Domestic Per Diem Rates Foreign Per Diem Rates Change of Station NSSC Travel now has another way that a [...]
5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Earth’s polar regions radiates much of the heat initially absorbed at the tropics out to space, mostly in the form of far-infrared radiation. Clouds in the Arctic — like these seen over a Greenland glacier — and Antarctic can trap far-infrared radiation on Earth, [...]
Earth Observer Earth and Climate Earth Observer Home Editor’s Corner Feature Articles News In Memoriams Science in the News More Meeting Summaries Archives 28 min read Summary of the 2023 GRACE Follow-On Science Team Meeting Felix Landerer, NASA/Jet Propulsion Laboratory, felix.w.landerer@jpl.nasa.gov Introduction In October 2023, the annual gathering of the Gravity Recovery and Climate [...]
Photo of the Day Why does a cloudy moon sometimes appear colorful? The effect, called a lunar corona, is created by the quantum mechanical diffraction of light around individual, similarly-sized water droplets in an intervening but mostly-transparent cloud. Since light of different colors has different wavelengths, each color diffracts differently. Lunar coronae are one [...]
How does spaceflight affect tumor-bearing fruit fly hosts and their parasites? Pigmentation: A side-by-side comparison of wasps shows a clear difference in the melanization of wing veins for wild-type and each mutant. Blade Shape: The kona mutant has an angular wing shape in contrast to wild-type’s rounded wing blade (vertical arrows in D–F).S. Govind. Background: Like [...]
How does spaceflight affect tumor-bearing fruit fly hosts and their parasites? Pigmentation: A side-by-side comparison of wasps shows a clear difference in the melanization of wing veins for wild-type and each mutant. Blade Shape: The kona mutant has an angular wing shape in contrast to wild-type’s rounded wing blade (vertical arrows in D–F).S. Govind. Background: Like [...]
25 Min Read The Marshall Star for May 29, 2024 More to Marshall: Center Leadership Provides Updates During Spring All-Hands Meeting By Wayne Smith NASA’s Marshall Space Flight Center will celebrate its 65th birthday next summer, and while there are plans to honor the center’s rich history, there is also More to Marshall ahead. [...]
2 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) To foster growth in Maryland’s aerospace industry, the state’s Department of Commerce signed a Memorandum of Understanding with NASA at the agency’s Goddard Space Flight Center in Greenbelt Wednesday, May 28, 2024. Center Director Dr. Makenzie Lystrup, Secretary of the Maryland Department of Commerce [...]
