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NASA to Hold Teleconference for Media, Industry on Unmanned Aircraft Flight in Public Airspace

NASA will host a teleconference for members of the media and aviation industry at 4 p.m. EDT on Thursday, June 28, to discuss the details and preliminary results of the agency’s first large-scale, remotely piloted aircraft flight in the national airspace using detect and avoid technology to fly without a safety chase aircraft.

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Highlights of the Summer Sky

What can you see in the night sky this summer? The featured graphic gives a few highlights for Earth’s northern hemisphere. Viewed as a clock face centered at the bottom, early (northern) summer sky events fan out toward the left, while late summer events are projected toward the right. Objects relatively close to Earth are illustrated, in general, as nearer to the cartoon figure with the telescope at the bottom center — although almost everything pictured can be seen without a telescope. As happens during any season, constellations appear the same year to year, and meteor showers occur on or near the same dates. For example, like last year, the stars of the Summer Triangle will be nighttime icons for most the season, while the Perseids meteor shower will peak in mid-August, as usual. Highlights specific to this summer’s sky include that Jupiter will be visible after sunset during June, and Venus will shine brightly in the evening sky during July and August. Saturn and Mars should be visible during much of this season’s night, with Saturn appearing in the direction opposite the Sun in late June, and Mars at opposition in late July. Finally, a total lunar eclipse should be visible to anyone who can see the Moon in late July. via NASA https://ift.tt/2yKwXLr

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A Slice of Glory

If you have ever seen a series of concentric rings of color near a mist or fog, you have likely seen a glory. This colorful optical phenomenon, bright red on the outside and blue toward the center, forms when water droplets scatter sunlight back toward a source of light. via NASA https://ift.tt/2yKBWMl

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Crew Dragon Hardware Put to the Test

SpaceX’s Crew Dragon is at NASA’s Plum Brook Station in Ohio, to undergo testing in the In-Space Propulsion Facility. The chamber will allow SpaceX and NASA to verify Crew Dragon’s ability to withstand the extreme temperatures and vacuum of space. via NASA https://ift.tt/2IrfkQF

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Rocket Plume Shadow Points to the Moon

Why would the shadow of a space shuttle launch plume point toward the Moon? In early 2001 during a launch of Atlantis, the Sun, Earth, Moon, and rocket were all properly aligned for this photogenic coincidence. First, for the space shuttle’s plume to cast a long shadow, the time of day must be either near sunrise or sunset. Only then will the shadow be its longest and extend all the way to the horizon. Finally, during a Full Moon, the Sun and Moon are on opposite sides of the sky. Just after sunset, for example, the Sun is slightly below the horizon, and, in the other direction, the Moon is slightly above the horizon. Therefore, as Atlantis blasted off, just after sunset, its shadow projected away from the Sun toward the opposite horizon, where the Full Moon happened to be. via NASA https://ift.tt/2KhLq2K

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Chaotic Clouds of Jupiter

This image captures swirling cloud belts and tumultuous vortices within Jupiter’s northern hemisphere. via NASA https://ift.tt/2yASshS

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NASA Television to Air Launch of Next Space Station Resupply Mission

NASA commercial cargo provider SpaceX is targeting no earlier than 5:42 a.m. EDT Friday, June 29, for the launch of its 15th resupply mission to the International Space Station. Live coverage will begin on NASA Television and the agency’s website Thursday, June 28, with prelaunch events.

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