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Fighter fuel range is the biggest threat to America’s Navy in the 21st centuryAfter nearly two decades of counter-terror operations around the world, the United States military has recently begun shifting its focus away from this form of asymmetric warfare and back toward the potential for near-peer conflicts with nations like China or Russia.Despite maintaining the most powerful military apparatus on the globe, this pivot won’t be without its challenges. Over the past 19 years, the United States military has funneled the majority of its funding into combat operations and new technologies that support the counter-terrorism endeavor. During this time, national opponents like China have had ample opportunity to observe the way America’s military operates, and find cost-effective methods of c...

Our water-seeking robotic Moon rover just booked a ride to the...Icy Hearts: A heart-shaped calving front of a glacier in Greenland (left) and Pluto’s frozen plains (right). Credits: NASA/Maria-Jose Viñas and NASA/APL/SwRIFrom deep below the soil at Earth’s polar regions to Pluto’s frozen heart, ice exists all over the solar system…and beyond. From right here on our home planet to moons and planets millions of miles away, we’re exploring ice and watching how it changes. Here’s 10 things to know:1. Earth’s Changing Ice SheetsAn Antarctic ice sheet. Credit: NASAIce sheets are massive expanses of ice that stay frozen from year to year and cover more than 6 million square miles. On Earth, ice sheets extend across most of Greenland and Antarctica. These two ice sheets contain more than 99 ...

Perseverance, Optimism, and an Undeniably Cool Poster The Planetary Society • June 12, 2020 The Downlink: Weekly resources to fuel your love of space Space Snapshot NASA/JPL-Caltech Installing Perseverance's Sample Tubes NASA’s Perseverance rover is almost ready to depart for Mars, with a launch planned for as early as 20 July. Here a team of engineers and technicians is seen installing sample tubes into the belly of the rover. These tubes will be used to collect and store samples of Martian soil for future return to Earth. You love space, now take action This weekly new...

🚀 A New Era of Human SpaceflightFor Women’s History Month, NASA and the International Space Station celebrate the women who conduct science aboard the orbiting lab. As of March 2019, 63 women have flown in space, including cosmonauts, astronauts, payload specialists, and space station participants. The first woman in space was Russian cosmonaut Valentina Tereshkova who flew on Vostok 6 on June 16, 1963. The first American woman in space, Sally Ride, flew aboard the Space Shuttle STS-7 in June of 1983. If conducted as planned, the upcoming March 29 spacewalk with Anne McClain and Christina Koch would be the first all-female spacewalk. Women have participated in science on the space station since 2001; here are the most recent and some highlights from their scientific work:Christina ...