“Hello my name is Dan Slayback and I’m a research scientist here at Goddard. This past month I traveled with the @sea_semester’s SSV Robert C. Seamans to Tonga to study Earth’s newest landmass Hunga Tonga-Hunga Ha’apai.
What an experience.
Shortly after the volcanic eruption that constructed this new island began in December 2014, we collected relevant satellite imagery. Based on observations to this point, we expected a relatively rapid and possibly complete disappearance of the new island, perhaps within months or at most a few years. But instead, the island has held on for years!
The core goal of these field expeditions is to improve our understanding of the island’s brief evolutionary history and likely future. The island was formed by a surtseyan eruption, which is a relatively modest explosive eruption (compared to say, Mt St Helens or Mt Pinatubo) occurring in shallow waters.
They are relatively common along the active Tonga trench. But it is less common for such eruptions to construct stable landmasses that survive for more than a few months.
The bird life was particularly active around Hunga Tonga, which appears cut from an exotic island adventure film: mostly sheer cliffs rise up to over 400 feet, facing the black volcanic cone (which you could readily imagine emitting a column of smoke), and draped in thick tropical greenery.” For more, click the link in our bio! 📷: SEA/ NASA
NASA： Q: How do you not obsess about contamination? ☠️ A: Well, the short answer is that we do.😷 Are you a neat freak? Then you’ll definitely want to read about Zao Huang, contamination control engineer at
NASA： Moon soil from the Apollo program comes in handy for Goddard scientists Jason McLain and William Farrell, who are irradiating it with simulated solar wind.What is solar wind? It is a stream of charged
NASA： 🗣️ in the hole! ....well, almost. ⛳ .Had this boulder on the Moon rolled just 250 feet more, it might have plopped neatly into a crater.This image shows a small portion of the rim of Antoniadi crater
NASA： ❄️Glaciers in southeast Greenland are changing rapidly.My name is Christopher Shuman and I study ice and glaciers for NASA, here at Goddard’s Cryospheric Sciences Laboratory. I wanted to tell you abou
NASA： I’m Michelle Thaller, an astronomer here at NASA's Goddard Space Flight Center. Looking at Saturn is probably the best way to send me back to that feeling of being a child, when everything is new and
NASA： For the first time, researchers have detected water vapor signatures in the atmosphere of a planet beyond our solar system that resides in the "habitable zone," the region around a star in which liqui
NASA： Its size and surface gravity are much larger than Earth’s, and its radiation environment may be hostile, but a distant planet called K2-18b has captured the interest of scientists all over the world.
NASA： 🚨 For the first time, @NASAHubble has found water vapor on a habitable-zone exoplanet 💦 Its size and surface gravity are much larger than Earth’s, and its radiation environment may be hostile, but a
NASA： Former Goddard electrical engineer and current NASA astronaut Christina Koch snapped this image of Hurricane Dorian from the International Space Station during a flyover on Monday, September 2, 2019.
NASA： This image from @NASAHubble shows a dwarf galaxy named UGC 685. Such galaxies are small and contain just a tiny fraction of the number of stars in a galaxy like the Milky Way. Dwarf galaxies often sho
NASA： This image from NASA's Hubble Space Telescope shows NGC 5307, a planetary nebula that lies about 10,000 light-years from Earth. It can be seen in the constellation Centaurus (the Centaur) in the south
NASA： My name is Ross Henry and I’m the project manager for one of our technology demonstration missions, called Raven. Raven was launched to the International Space Station (ISS) in 2017, and the mission i