Mars Cube One: New Deep-Space CubeSats Will Travel to Mars Along With InSight Lander

Artist's conception of the MarCO CubeSats flying past Mars as the InSight lander descends to the surface. Image Credit: NASA/JPL-Caltech

Artist’s conception of the MarCO CubeSats flying past Mars as the InSight lander descends to the surface. Image Credit: NASA/JPL-Caltech

The next NASA mission to Mars, the InSight lander, will include some additional experimental technology: the first deep-space CubeSats. Two small CubeSats will fly past the planet as the lander is descending through the […]

LightSail A Success: Planetary Society Reviews Data and Plans for 2016 Mission

LightSail captured this image of its deployed solar sails in Earth orbit on June 8, 2015. Photo Credit and Caption: The Planetary Society

LightSail captured this image of its deployed solar sails in Earth orbit on June 8, 2015. Photo Credit and Caption: The Planetary Society

It’s not a true space mission without a little bit of drama, and The Planetary Society had just that. Unforeseen software glitches, spacecraft falling silent, and periods of no contact with […]

NASA's MMS Fleet and the Science of Magnetic Reconnection

Artist concept of MMS, a mission to study how magnetic fields release energy in a process known as magnetic reconnection. MMS consists of four identical observatories that will fly in a tight formation and provide the first three-dimensional view of magnetic reconnection. Photo Credit: NASA

Artist’s concept of MMS, a mission to study how magnetic fields release energy in a process known as magnetic reconnection. MMS consists of four identical observatories that will fly in a tight formation and provide the first 3-D view of magnetic reconnection. Photo Credit: NASA

Another NASA mission is about to blast into the magnetosphere. […]

NASA's MMS Fleet Ready for Mission to Study Magnetic Reconnection in Earth's Magnetosphere

All four of NASA’s MMS spacecraft in the clean room at Astrotech Space Operations in Titusville, Fla., completed and stacked for launch atop a ULA Atlas-V rocket as early as March 12, 2015. Photo Credit: Alan Walters / AmericaSpace

In a few weeks four identically-instrumented NASA spacecraft will launch on the space agency’s next […]

MESSENGER Gets Small Reprieve Prior to End of Mission in 2015

Artist’s impression of MESSENGER in orbit around Mercury. Following a highly successful decade-long mission, the spacecraft will eventually face its demise while crashing on Mercury’s surface, sometime next spring. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

The coming of the New Year is a time for celebration and reflection on […]

Ghost of Comet ISON Fading Fast

The leftovers of comet ISON are fading from view very quickly as the debris races away from the Sun. Photo Credit: NASA / ESA / SOHO

Comet ISON—or whatever is left of it—is fading fast, and the latest images from the NASA/ESA Solar and Heliospheric Observatory (SOHO) LASCO-C3 camera may be showing […]

Ghost of Comet ISON Rises Like an Icy Phoenix After Suicidal Kamikaze Visit With the Sun

ISON appears as a white smear heading up and away from the Sun. ISON was not visible during its closest approach to the Sun, so many scientists thought it had disintegrated, but images like this one from the ESA/NASA Solar and Heliospheric Observatory suggest that a small nucleus may be intact. Image/Caption Credit: ESA/NASA/SOHO/GSFC

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All Eyes on Comet ISON as It Plummets Toward Thanksgiving Day Brush With the Sun

VIDEO: Comet ISON moves ever closer to the Sun in this movie from the ESA/NASA Solar and Heliospheric Observatory, captured in the early hours of Nov. 27, 2013. A coronal mass ejection explodes off the Sun; it is unlikely to damage ISON even if they cross paths. Image Credit/Caption: ESA/NASA/SOHO

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The Moon and Sun

Image Credit: NASA/SDO/LRO/GSFC

Two or three times a year, NASA’s Solar Dynamics Observatory observes the Moon traveling across the Sun, blocking its view. While this obscures solar observations for a short while, it offers the chance for an interesting view of the shadow of the Moon. The Moon’s crisp horizon can be seen up […]

Voyager 1 Enters Final Region Of Our Solar System Before Interstellar Space

This artist's concept shows plasma flows around NASA's Voyager 1 spacecraft as it approaches interstellar space. Image Credit: NASA/JPL-Caltech/JHUAPL

This artist’s concept shows plasma flows around NASA’s Voyager 1 spacecraft as it approaches interstellar space. Image Credit: NASA/JPL-Caltech/JHUAPL

NASA’s Voyager 1 spacecraft, which left Earth some 35 years ago, continues on an epic journey across the solar system towards an inevitable crossing into interstellar space.  The spacecraft has travelled farther than any man-made object […]