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NASA counts down final month of Cassini’s tour of Saturn

15 August 2017 Stephen Clark

NASA’s Cassini orbiter sailed through the tenuous outermost reaches of Saturn’s atmosphere without trouble Monday, performing the first of five close swings nearer to the planet than any previous spacecraft before a final dive Sept. 15 to end the probe’s nearly 20-year mission.

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Station-bound instrument to open new chapter in the story of cosmic rays

9 August 2017 Stephen Clark

Physicists are gearing up to send a re-engineered science instrument originally designed for lofty balloon flights high in Earth’s atmosphere to the International Space Station next week to broaden their knowledge of cosmic rays, subatomic particles traveling on intergalactic routes that could hold the key to unlocking mysteries about supernovas, black holes, pulsars and dark matter.

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New Horizons’ next target might be a binary pair

8 August 2017 Stephen Clark

Ground observations of the New Horizons spacecraft’s next target last month revealed the distant object, lurking in the outer Solar System more than four billion miles from Earth, might have an unconventional elongated shape, or even consist of two icy bodies orbiting one another in an age-old cosmic dance.

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Study teams comb through NASA’s wish list for new telescope

21 July 2017 Stephen Clark

Scientists outlining four concepts for a powerful new space telescope that could launch in the 2030s this week said improvements in optics, detectors and access to huge new rockets like NASA’s Space Launch System could revolutionize the way astronomers observe potentially habitable planets, black holes, and the earliest galaxies in the Universe.

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Pioneering probe for gravitational wave observatory ends mission

19 July 2017 Stephen Clark

The European Space Agency’s LISA Pathfinder spacecraft, now sailing around the sun on a trajectory away from Earth, was deactivated Tuesday after a nearly 18-month mission testing previously-untried lasers, vacuum enclosures, exotic gold-platinum cubes and micro-thrusters needed for a trio of gravitational wave observatories set for launch in the 2030s.

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NASA marks 20 years of continuous Mars exploration

4 July 2017 Stephen Clark

NASA’s Mars Pathfinder probe dropped to the surface of Mars for an airbag-cushioned landing 20 years ago Tuesday, bouncing 15 times across an ancient flood plain before deploying a mobile robot to usher in two decades of uninterrupted Martian exploration.

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Updated Kepler catalog contains 219 new exoplanet candidates

21 June 2017 Stephen Clark

Scientists have published a catalog of exoplanet discoveries made by NASA’s Kepler space telescope, identifying 219 previously-unknown planet candidates circling stars elsewhere in the galaxy, including 10 would-be worlds that appear to be about the same size of Earth with temperatures potentially hospitable for life.