GREENBELT, Md. (NASA PR) — Taking advantage of a total lunar eclipse, astronomers using NASA’s Hubble Space Telescope have detected Earth’s own brand of sunscreen – ozone – in our atmosphere. This method simulates how astronomers and astrobiology researchers will search for evidence of life beyond Earth by observing potential “biosignatures” on exoplanets (planets around other stars).
WASHINGTON, DC (NASA PR) — If you live in the western part of North America, Alaska, and the Hawaiian islands, you might set your alarm early the morning of Wednesday, Jan. 31 for a lunar trifecta: a pre-dawn “super blue blood moon.”
On Saturday morning, April 4, 2015 not long before sunrise, the bright full moon over North America should turn a lovely shade of celestial red during a total lunar eclipse. Beginning at 6 a.m. EDT through the end of the eclipse, NASA Marshall will offer live Ustream video and NASA astronomer Mitzi Adams will take Twitter questions via @NASA_Marshall. Use the hashtag #eclipse2015 to send your questions.
A total lunar eclipse is seen as the full moon is shadowed by the Earth on the arrival of the winter solstice, Tuesday, December 21, 2010 in Arlington, VA. The eclipse lasted about three hours and twenty-eight minutes.
A lunar eclipse occurs when the Earth lines up directly between the sun and the moon, blocking the sunâ€™s rays and casting a shadow on the moon. As the moon moves deeper and deeper into the Earth’s shadow, the moon changes color before your very eyes, turning from gray to an orange or deep shade of red.
NASA has planned various ways to help the public enjoy the total lunar eclipse on the night of Dec. 20 to 21.
Astronomers at NASA’s Marshall Space Flight Center in Huntsville, Ala., will host a pair of live web chats to answer questions and help make the rare celestial experience one to remember. Marshall Center astronomer Rob Suggs will hold the first chat from 4 – 5 p.m. EST on Dec. 20 and discuss the best ways to view the eclipse. From 12 a.m. – 5 a.m., Marshall researcher Mitzi Adams will answer questions as the eclipse passes across the continental United States. A live video feed of the eclipse will be available on the chat site at: