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SPACE WEATHER BALLOON DATA: Almost once a week, and the students of Earth to Sky Calculus fly space weather balloons to the stratosphere over California. 'Lunar Distance.' 1 LD = 384,401 km, the distanceīetween Earth and the Moon. All purchases from the Earth to Sky Store help pay the helium bill for our student ballooning program.Īll sales support hands-on STEM education The 750 ml decanter comes with a greeting card showing the item in flight, and telling the story of its journey to the stratosphere and back again. 10th, it hitched a ride onboard a cosmic ray research balloon floating 106,066 feet above the Sierra Nevada mountains of central California: IMPERIAL STORM TROOPER WHISKEY DECANTER: It's the perfect gift for a Star Wars fan-a Storm Trooper Whiskey Decanter from the edge of space. Ephemerides from JPL are recommended, too. Want to see Lucy? You can spot the spacecraft using observing tips from the Southwest Research Institute.

It might remain bright enough to see using backyard telescopes for more than 24 hours.

Amateur astronomers in the western United States should be able to see Lucy using binoculars or a small telescope.Īfter the gravity assist, Lucy will recede from Earth, passing by the Moon and taking a few pictures before continuing out into interplanetary space. By that time it will have dimmed to 6th or 7th magnitude. Lucy will continue over the Pacific Ocean in darkness and emerge from the Earth's shadow at 4:26 a.m. At the apex of its brightness, it will suddenly disappear into Earth's shadow, vanishing at 11:02 UTC (7:02 p.m. 16th, the spacecraft will race overhead shining like a 1st or 2nd magnitude star. Observers in western Australia will be the first to see Lucy. Red stars correspond to cities on the right. On the left, the location in the sky where Lucy will first appear when it emerges from the Earth's shadow for the Western United States. Passing so close allows Lucy to extract maximum energy from Earth's gravitational field. The altitude is so low, the mission team had to include the effect of atmospheric drag when designing the flyby. NASA will be ready to make last-minute adjustments to avoid collisions.

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Lucy's trajectory will bring it deep into near Earth orbit, passing through a region full of Earth-orbiting satellites and debris. 16, 2021, the spacecraft is coming home after exactly one year in space. To reach the Trojans, Lucy must first return to Earth. Sensors onboard the spacecraft will examine their appearance and composition, putting competing theories of planetary genesis to the test. These are primitive leftovers from the formation of our solar system, collected into swarms around two of Jupiter's Lagrange points. Named for a hominid fossil found in 1974 in Africa, Lucy is on a mission to study a completely different kind of relic: the Trojan asteroids. The slingshot will give Lucy the energy it needs to fly towards the asteroid belt and, its ultimate destination, the orbit of Jupiter. This is a gravity assist maneuver-the first of three required for Lucy's complicated mission to visit 8 different asteroids. Near closest approach over Australia it will be visible to the naked eye glowing almost as brightly as a 1st magnitude star. 16th, NASA's Lucy spacecraft will skim Earth's atmosphere, passing only 220 miles (350 kilometers) above our planet's surface. LUCY'S SUPER-CLOSE FLYBY OF EARTH: Most spacecraft try to avoid hitting the atmosphere. Maps, time tables, and eclipse glasses are available from. 14, 2023, the Moon will pass in front of the sun, producing a ' ring of fire' annular eclipse over the USA. RING OF FIRE SOLAR ECLIPSE: Mark your calendars. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays. All quiet! Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is beginning, and this is reflected in the number of cosmic rays entering Earth's atmosphere. None of these sunspots poses a threat for strong solar flares.

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