The case for a mission to Mars' moon Phobos

Ask any space enthusiast, and almost anyone will say humankind's ultimate destination is Mars. But NASA is currently gearing up to go to an asteroid. While the space agency says its Asteroid Initiative will help in the eventual ...

Catching the planets and new views of Mars

Looking west after sunset on Friday September 26, the thin waxing crescent moon forms a triangle with Mercury and Spica, the brightest star in the constellation of Virgo. You can see how far Mercury has travelled since passing ...

Indian spacecraft on course to enter Mars orbit (Update)

India will soon know if its first interplanetary mission will achieve its goal, when a spacecraft built with homegrown technology for a remarkably low price tag of $75 million begins its final maneuvers into orbit around ...

Sandy ridges pose a mystery for future Martian beach vacations

What are these thick dune-like features on Mars, and how were they formed? Scientists are still trying to puzzle out these ridges, which you can see above in a more tropical region of the Red Planet called Iapygia, which ...

Solar system simulation reveals planetary mystery

When we look at the Solar System, what clues show us how it formed? We can see pieces of its formation in asteroids, comets and other small bodies that cluster on the fringes of our neighborhood (and sometimes, fly closer ...

How can we find tiny particles in exoplanet atmospheres?

It may seem like magic, but astronomers have worked out a scheme that will allow them to detect and measure particles ten times smaller than the width of a human hair, even at many light-years distance.  They can do this ...

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