Astronomy & Astrophysics 101: Elliptical Galaxy
What Is an Elliptical Galaxy? Elliptical galaxies have an even, ellipsoidal shape. They typically contain a much greater proportion of older stars than spiral galaxies…
European Space Agency
Hubble Captures the Aftermath of a Cosmic Cataclysm
The tattered remnant of a supernova — a titanic explosion marking the end of the life of a dying star — is shown in this…
See What Happens on the Space Station During an “Orbital Reboost” Maneuver
Get in line with ESA astronaut Matthias Maurer and his Expedition 66 crewmates to experience an orbital reboost of the International Space Station (ISS) from…
Astronomy & Astrophysics 101: Jupiter
What Is Jupiter? Jupiter is the fifth planet from the Sun. It is a gas giant, and the largest and most massive planet in our…
Exploring Earth From Space: Rhine River, Germany [Video]
The Rhine River, the longest river in Germany, is featured in this colorful image captured by the Copernicus Sentinel-2 mission. Along this river lies the…
Splashdown! NASA SpaceX Crew-3 Astronauts Safely Return to Earth
NASA’s SpaceX Crew-3 astronauts aboard the Dragon Endurance spacecraft safely splashed down Friday in the Gulf of Mexico off the coast of Florida, completing the…
Astronomy & Astrophysics 101: Exoplanet
What Is an Exoplanet? An exoplanet is a planet that is located outside our Solar System. While there is currently no formal agreement on what…
Astronomy & Astrophysics 101: Dwarf Planet
What Is a Dwarf Planet? A dwarf planet is a celestial body that is in orbit around the Sun and has enough mass to be…
Hubble Sees Double in M99 – A “Grand Design” Spiral Galaxy
The magnificent spiral galaxy M99 fills the frame in this image from the NASA/ESA Hubble Space Telescope. M99 — which is located about 42 million…
Astronomy & Astrophysics 101: Habitable Zone
What Is a Habitable Zone? The Habitable Zone is the region around a star where the conditions could potentially be suitable to sustain life on…
Exploring Earth From Space: Mount Aso – The Largest Active Volcano in Japan
Mount Aso, the largest active volcano in Japan, is featured in this image captured by the Copernicus Sentinel-2 mission. Mount Aso, located in the Kumamoto…
Prolonged Heatwave Scorches India
India is currently experiencing a lengthy heatwave, with temperatures in numerous cities across the country topping 42°C (108°F). This comes only weeks after India recorded…
Astronomy & Astrophysics 101: Infrared Astronomy
What Is Infrared Astronomy? Infrared astronomy is a branch of astronomy in which astronomers observe and analyze light from the Universe with wavelengths in the…
Hubble Space Telescope Observations Used To Answer Key Exoplanet Questions
A worldwide team of astronomers studied archival Hubble Space Telescope observations of 25 hot Jupiters, allowing them to answer five unresolved questions important to our…
Astronomy & Astrophysics 101: Galaxy
What Is a Galaxy? A galaxy is a collection of stars, dust, gas, and dark matter held together by gravity. Galaxies contain anywhere from a…
Hubble Space Telescope Spies a Tenuous Diffuse Galaxy
In this image from the NASA/ESA Hubble Space Telescope, the ultra-diffuse galaxy GAMA 526784 appears as a hazy patch of light. This wispy object is…
The Moon: Going Where No Satnav Has Gone Before
The test version of a unique satellite navigation receiver has been delivered for integration testing on the Lunar Pathfinder spacecraft. The NaviMoon satnav receiver is…
Astronomy & Astrophysics 101: Electromagnetic Spectrum
What Is the Electromagnetic Spectrum? The electromagnetic spectrum is a range of frequencies of electromagnetic radiation. From long to short wavelength, the EM spectrum includes…
