Contrails conjure a sense of something overwhelming and ineffable, as terrifying as it is beautiful.

Sabbatical.Travel has partnered with Zephalto to combine stratospheric balloon flights with transformational coaching ...

The B-2 Spirit Bomber is a majestic and incredibly fast aircraft that changed the way the U.S. surveilled the skies … ...

The U-2 is a legendary Cold War spy plane, easy to spot but exceedingly rare. Capable of flying at altitude of 70,000 feet (high enough to see the curvature of the Earth), the U-2 has been performing ...

Due to the curvature of the earth, the radar beams optimal range is from 5 to 200km for this 3000m level. Beyond 200km, the radar is displaying rainfall echoes from clouds at higher altitude in the ...

As pandemic lockdowns forced humans into isolation, Earth's vegetation was thriving. The year 2020 was the greenest in modern ...

A team of geologists and mineral physicists at Harvard University, the University of California, Argonne National Laboratory ...

Dust particles lofted high into the air would absorb and scatter sunlight, preventing it from reaching Earth’s surface. The lack of sunlight would cause global temperatures to drop rapidly by as ...

A recently discovered asteroid that has captured the attention of the astronomy community now has a slightly increased risk of affecting Earth ... of the incredibly high speed (about 17 kilometers ...

Traveling at high altitude can be hazardous. The information provided here is designed for educational use only and is not a substitute for specific training or experience. Princeton University and ...

NASA's Jet Propulsion Laboratory (JPL) is monitoring asteroid 2025 CG, which will pass by Earth on 8 February. Measuring approximately 55 feet in diameter, this near-Earth object poses no threat.

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