Varied other parts-including a near infrared camera an 18-segment, 21.3-foot, hexagonal gold and beryllium mirror and an elaborate five-layer, tennis-court-sized Kapton shield that will block heat and light from the sun, Earth and moon-will all hopefully move into place in a multi-step display of metallic origami, creating an angular, high-tech object weighing more than 13,000 pounds. Just 30 minutes after launch a solar array will unfold and two hours later a high gain antenna will deploy. Anxious scientists will have to watch from Earth as their creation unfolds over its 30-day, one-million-mile journey to the spot beyond the moon where it will orbit the sun. Webb will help scientists understand how early galaxies formed and grew, detect possible signatures of life on other planets, watch the birth of stars, study black holes from a different angle, and likely discover unexpected truths.īut Webb’s deployment isn’t without risks. "Webb can reach that kind of sensitivity limit in seven or eight hours."Īs reporter Shi en Kim reported for Smithsonian magazine earlier this year, the telescope is an astronomical Swiss Army knife of sorts, with-when all of its tools are clicked open in space-the ability to study a host of new things about the universe. "Some of the deep field work that Hubble has done, they would look in a particular field for a couple of weeks," Randy Kimble, a project scientist for the James Webb Space Telescope, told. While Hubble can see back 400 million years after the Big Bang, Webb can possibly look back 100 million years after the event. ![]() ![]() Scientists built the telescope to see in infrared and it can look further into space, and thus further back in time, than anything previously constructed. The James Webb Telescope has a mirror roughly six times the collecting size of Hubble’s-and it is 100 times more sensitive. The telescope’s "spectacular images have captured the imagination for decades, and will continue to inspire humanity for years to come," said Thomas Zurbuchen, associate administrator for science at NASA headquarters in Washington, D.C., in a statement. The Hubble launched into low-Earth orbit in 1990 and in the three decades since has been sending stunning images of stars and galaxies unlike anything seen before. The cooperative project between the space agencies of the United States, Canada and Europe will be able to do things its famed predecessor, the Hubble Space Telescope, couldn't. “I truly see JWST as one such monument of our times.” “Remarkable enduring achievements of human hand and mind, be it the temples of Mahabalipuram, the pyramids of Giza, the Great Wall or the Sistine Chapel have all taken time and expense,” Priyamvada Natarajan, an astrophysicist at Yale, told the New York Times. But scientists say the investment in time and money will be worth the wait and cost, if the craft performs as expected. And this year alone, the telescope was delayed several times. House of Representatives even threatened to cancel the craft. More than a decade has passed since the telescope was first expected to launch, a delay accompanied by an escalating price tag that soared roughly $9 billion above budget. The Christmas gift to the world will ditch its box and open up slowly on its own during a multi-step, month-long journey to its orbit in outer space. ET the James Webb Space Telescope, a scientific gift folded up and wrapped in a rocket, took off from its launch site in the South American country of French Guiana. In the first batch of images from Webb, the spectrum is reversed so that it more easily shows where the greatest amount of light has been blocked.In an incremental sign the universe rewards the diligent behavior and patience of astronomers out to study it, conditions cleared enough this Christmas morning for the launch of the biggest, most powerful and most expensive telescope ever. This creates dark absorption lines in the spectrum, a kind of molecular fingerprint describing the atmosphere's chemical composition. As the star's light is filtered through the planet's atmosphere, molecules within the atmosphere absorb specific wavelengths of starlight, effectively blocking those wavelengths from reaching us. The transmission spectrum reveals molecules in the planet's atmosphere as it transits, or moves in front of its star from our perspective. ("WASP" stands for "Wide Angle Search for Planets," which has used arrays of robotic cameras in the Canary Islands and South Africa to discover almost 200 exoplanets so far.) ![]() WASP-96b is a " hot Jupiter" exoplanet, a gas giant that orbits extremely close to its star. As part of the first set of science data from the James Webb Space Telescope, NASA released the transmission spectrum for WASP-96b, an exoplanet located 1,150 light-years away.
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