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Astronomy

A Galaxy on the Edge

This colourful stripe of stars, gas, and dust is actually a spiral galaxy named NGC 1055. Captured here by ESO’s Very Large Telescope (VLT), this big galaxy is thought to be up to 15 percent larger in diameter than the …

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Solar storms trigger surprising phenomena close to Earth

Click for a full size image Solar storms trigger surprising phenomena close to Earth New research from DTU shows that eruptions on the Sun’s surface not only send bursts of particles into Earth’s atmosphere, but—contrary to previous belief—also remove electrons …

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NuSTAR Helps Find Universe’s Brightest Pulsars

NGC 5907 ULX is the brightest pulsar ever observed. This image comprises X-ray emission data (blue/white) from ESA’s XMM-Newton space telescope and NASA’s Chandra X-ray Observatory, and optical data from the Sloan Digital Sky Survey (galaxy and foreground stars). The …

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Martian Winds Carve Mountains, Move Dust, Raise Dust

Gif This sequence of images shows a dust-carrying whirlwind, called a dust devil, scooting across ground inside Gale Crater, as observed on the local summer afternoon of NASA’s Curiosity Mars Rover’s 1,597th Martian day, or sol (Feb. 1, 2017). Image …

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The Dawn of a New Era for Supernova 1987A

Click for a full size image This Hubble Space Telescope image shows Supernova 1987A within the Large Magellanic Cloud, a neighboring galaxy to our Milky Way. Distant stars serve as a backdrop for Supernova 1987A, located in the center of …

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A New Paradigm in Parachute Design

This array of parachutes, designed for NASA’s Orion spacecraft, is seen here during a test above Eloy, Ariz., in 2015. Several parachute designs for Orion have also been tested in NASA wind tunnels. (Credit: NASA) Click for a full size …

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The Heat is On

The saucer-like Mars Science Laboratory, which landed the Curiosity rover on MARS, featured the largest heat shield (pictured here)—at 14 feet 9 inches in diameter—to enter a planet’s atmosphere. NASA is now engaging in R&D for even larger heat shields …

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Ultracool Dwarf and the Seven Planets

This artist’s impression shows the view from the surface of one of the planets in the TRAPPIST-1 system. At least seven planets orbit this ultra cool dwarf star 40 light-years from Earth and they are all roughly the same size …

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7 new Earth-like exoplanets discovered, NASA announces

This illustration shows the possible surface of TRAPPIST-1f, one of the newly discovered planets in the TRAPPIST-1 system. Scientists using the Spitzer Space Telescope and ground-based telescopes have discovered that there are seven Earth-size planets in the system. (Credits: NASA/JPL-Caltech) …

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NASA’s Europa Flyby Mission Moves into Design Phase

This artist’s rendering shows NASA’s Europa mission spacecraft, which is being developed for a launch sometime in the 2020s. Image credit: NASA/JPL-Caltech Click for a full size image   NASA’s Europa Flyby Mission Moves into Design Phase A mission to …

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Brain WavesWhen Rocket Science Meets X-ray Science

Francesco Panerai of Analytical Mechanical Associates Inc., a materials scientist leading a series of X-ray experiments at Berkeley Lab for NASA Ames Research Center, discusses a 3-D visualization (shown on screens) of a heat shield material’s microscopic structure in simulated …

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The metal that appeared from nowhere

There is more lithium present than the Big Bang created (Credit: Siloto/Alamy) Click for a full size image   The metal that appeared from nowhere A mysterious cosmic factory is producing lithium. Scientists are now getting closer at finding out …

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Self-made stars

This composite image shows powerful radio jets from the supermassive black hole at the center of a galaxy in the Phoenix Cluster inflating huge “bubbles” in the hot, ionized gas surrounding the galaxy. The cavities inside the blue region were …

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NASA’s Juno to Remain in Current Orbit at Jupiter

NASA’s Juno spacecraft soared directly over Jupiter’s south pole when JunoCam acquired this image on February 2, 2017 at 6:06 a.m. PT (9:06 a.m. ET), from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops. Click for …

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An Ice World…With an Ocean?

A dramatic plume sprays water ice and vapor from the south polar region of Saturn’s moon Enceladus. Cassini’s first hint of this plume came during the spacecraft’s first close flyby of the icy moon on February 17, 2005. Credit: NASA/JPL/Space …

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