Manage episode 337453857 series 3381328
After many delays, a Christmas launch, and a months-long period of travel and testing, the first science images from the James Webb Space Telescope (JWST) were unveiled this week. The JWST has a huge multi-segmented mirror that allows it to gather faint light—and it sees in the infrared, allowing it to see through dust and gas and reveal details about the universe that were previously unseeable.
On Monday, a short ceremony at the White House unveiled the first image, a “deep field” image taken by staring for hours at a piece of sky the size of a grain of sand held at arm’s length. The image shows thousands of galaxies, including ones so distant that their images have been warped by the gravitational lensing effect of massive objects in between. On Tuesday, four more images were unveiled, including a spectrograph describing the atmosphere of a distant exoplanet, a cluster of galaxies known as Stephan’s Quintet, the dying stars of the Southern Ring Nebula, and the star formation region known as the Carina Nebula.
Amber Straughn, an astrophysicist and deputy project scientist for James Webb Space Telescope Science Communications joins Ira to talk about the images, and what lies ahead now that the JWST has entered its operational phase.
To compare the JWST images side-by-side with the Hubble images of the same subjects, visit www.sciencefriday.com.
A Busy Time For Space Launches
While much of the astronomical world was gazing at the first science images from the James Webb Space Telescope, there’s been a lot of other space news to discuss—from launches and testing associated with the Artemis I mission to the moon to new data from the Martian rovers. There’s also big news with commercial space flights, and even plans from some commercial vendors to work on a replacement for the aging International Space Station.
Ira talks with Brendan Byrne, space reporter from WMFE and host of podcast “Are We There Yet?”, along with planetary scientist Matthew Siegler, about recent solar system news, and space events to keep an eye on in the months ahead.
U.S. Attempts To Catch Up With Rising Monkeypox Cases
The outbreak of the orthopox virus currently known as monkeypox continues to spread in hotspots around the United States, with symptoms ranging from fever to intensely painful, contagious lesions. From five cases in late May, the known number has grown to at least 1,053 as of Wednesday afternoon, with epicenters including New York City, the Bay Area, Chicago, Washington D.C., and other major cities. But the current numbers most certainly are an undercount, as people seeking diagnosis report difficulty accessing tests. Meanwhile, the rollout of the existing monkeypox vaccine, Jynneos, remains slow and inadequate for demand, with more than a million doses still stuck in a stockpile in Denmark.
So far, the virus, which is known to spread through respiratory droplets and skin-to-skin contact, has been detected predominantly in men who have sex with men. New York public health researcher Keletso Makofane and San Francisco AIDS Foundation CEO Tyler TerMeer speak to the frustration of LGBTQ men and nonbinary people in the most at-risk networks, as resources and response lag.
And Ira talks to UCLA monkeypox researcher Anne Rimoin, who twelve years ago published a warning that cases were rising in African countries as immunity to the related smallpox virus waned. He also speaks with Brown University epidemiologist Jennifer Nuzzo about the outlook for global and domestic containment, and the pressing need for more data.
Transcripts for each segment will be available the week after the show airs on sciencefriday.com.