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Planetary Defense Coordination Office
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Near-Earth Asteroids as of September 2025

Each month, NASA’s Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA’s planetary defense efforts, near-Earth object close approaches, and other timely facts about comets and asteroids that could pose an impact hazard with Earth. Here is what we’ve found so far. Updated: September 11, 2025
Posted September 11, 2025
Biological & Physical Sciences
ISS Research
Science & Research
Science Mission Directorate
Uncategorized

NASA Aims to Keep Fuel Cool Under Pressure with Zero Boil-Off Experiment On NG-23

Space missions rely on cryogenic fluids — extremely cold liquids like liquid hydrogen and oxygen — for both propulsion and life support systems. These fuels must be kept at ultra-low cryogenic temperatures to remain in liquid form; however, solar heating and other sources of heat increase the rate of evaporation of the liquid and cause […]
Posted September 10, 2025
Astrophysics
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Science & Research
Stars
The Universe

NASA’s Webb Observes Immense Stellar Jet on Outskirts of Our Milky Way

A blowtorch of seething gasses erupting from a volcanically growing monster star has been captured by NASA’s James Webb Space Telescope. Stretching across 8 light-years, the length of the stellar eruption is approximately twice the distance between our Sun and the next nearest stars, the Alpha Centauri system.
Posted September 10, 2025
Astrobiology
Mars
Perseverance (Rover)
Science & Research
Science Mission Directorate

What Would It Take to Say We Found Life? We Asked a NASA Expert: Episode 63

What Would It Take to Say We Found Life? We call this the podium test. What would it take for you personally to confidently stand up in front of an international audience and make that claim? When you put it in that way, I think for a lot of scientists, the bar is really high. […]
Posted September 10, 2025
Astrophysics
Exoplanets
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Science & Research
The Universe

NASA Webb Looks at Earth-Sized, Habitable-Zone Exoplanet TRAPPIST-1 e

Scientists are in the midst of observing the exoplanet TRAPPIST-1 e with NASA’s James Webb Space Telescope. Careful analysis of the results so far presents several potential scenarios for what the planet’s atmosphere and surface may be like, as NASA science missions lay key groundwork to answer the question, “are we alone in the universe?”  […]
Posted September 8, 2025
Nancy Grace Roman Space Telescope
Astrophysics
Black Holes
Dark Energy
Galaxies, Stars, & Black Holes
Galaxies, Stars, & Black Holes Research
Goddard Space Flight Center
Science & Research
Stars
Supernovae
The Universe

One Survey by NASA’s Roman Could Unveil 100,000 Cosmic Explosions

Scientists predict one of the major surveys by NASA’s upcoming Nancy Grace Roman Space Telescope may reveal around 100,000 celestial blasts, ranging from exploding stars to feeding black holes. Roman may even find evidence of some of the universe’s first stars, which are thought to completely self-destruct without leaving any remnant behind.
Posted July 15, 2025
Goddard Space Flight Center
Heliophysics
Heliophysics Division
Missions
NASA Centers & Facilities
NASA Directorates
Parker Solar Probe (PSP)
Science & Research
Science Mission Directorate
Solar Wind
Space Weather
The Sun

NASA’s Parker Solar Probe Snaps Closest-Ever Images to Sun

On its record-breaking pass by the Sun late last year, NASA’s Parker Solar Probe captured stunning new images from within the Sun’s atmosphere.
Posted July 10, 2025
Astrophysics
Emission Nebulae
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Nebulae
Science & Research
Star-forming Nebulae
Stars
The Universe

NASA’s Webb Scratches Beyond Surface of Cat’s Paw for 3rd Anniversary

It’s the cat’s meow! To celebrate its third year of revealing stunning scenes of the cosmos in infrared light, NASA’s James Webb Space Telescope has “clawed” back the thick, dusty layers of a section within the Cat’s Paw Nebula (NGC 6334). Focusing Webb’s NIRCam (Near-Infrared Camera) on a single “toe bean” within this active star-forming […]
Posted July 10, 2025
Artificial Intelligence (AI)
Marshall Science Research & Projects
Marshall Space Flight Center
Science & Research

Smarter Searching: NASA AI Makes Science Data Easier to Find

Imagine shopping for a new pair of running shoes online. If each seller described them differently—one calling them “sneakers,” another “trainers,” and someone else “footwear for exercise”—you’d quickly feel lost in a sea of mismatched terminology.
Posted July 9, 2025
Astrophysics
Black Holes
Brown Dwarfs
Exoplanet Science
Exoplanets
Galaxies
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Nebulae
Science & Research
Star-forming Nebulae
Stars
Studying Exoplanets
The Universe

3 Years of Science: 10 Cosmic Surprises from NASA’s Webb Telescope

Since July 2022, NASA’s James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and analyze otherwise invisible infrared light, Webb is making observations that were once impossible, changing our view of the cosmos from the most distant galaxies to our own solar system.
Posted July 2, 2025
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