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NASA's Global Precipitation Measurement mission has produced its first global map of rainfall and snowfall. The GPM Core Observatory launched one year ago on Feb. 27, 2014 as a collaboration between NASA and the Japan Aerospace Exploration Agency and acts as the standard to unify precipitation measurements from a network of 12 satellites. The result is NASA's Integrated Multi-satellitE Retrievals for GPM data product, called IMERG, which combines all of these data from 12 satellites into a single, seamless map. The map covers more of the globe than any previous precipitation data set and is updated every half hour, allowing scientists to see how rain and snow storms move around nearly the entire planet. As scientists work to understand all the elements of Earth’s climate and weather systems, and how they could change in the future, GPM provides a major step forward in providing the scientific community comprehensive and consistent measurements of precipitation.

NASA | Satellite Tracks Saharan Dust to Amazon in 3-D

A Feb. 18 briefing at Johnson Space Center previewed a series of U.S. spacewalks to prepare the International Space Station for new docking ports that will allow future crews launched from Florida, on U.S. commercial spacecraft to dock to the station. On the first EVA, scheduled for no earlier than Feb. 21, NASA astronauts Barry Wilmore and Terry Virts will prepare cables and communications gear for the two new International Docking Adapters, built by Boeing and scheduled for delivery on a pair of SpaceX flights this year. The other spacewalks are slated for Feb. 25th, and March 1. Also, Final Automated Transfer Vehicle, Progress supply ship to ISS, Magnetospheric Multiscale mission, Orion chutes in the wind, Pegasus modifications and more!

Senior Project Scientist Tom Moore outlines the three instrument suites onboard the four MMS spacecraft. On March 12, 2015, NASA plans to launch the Magnetospheric Multiscale, or MMS, mission. MMS consists of four identical spacecraft that will orbit around Earth through the dynamic magnetic system surrounding our planet to study a little-understood phenomenon called magnetic reconnection. Watch NASA's new movie to learn more about MMS and the phenomenon of magnetic reconnection, which occurs near Earth, on the sun, in other stars and in the vicinity of black holes and neutron stars. The Magnetiospheric Multiscale, or MMS, mission will provide unprecedented detail on a phenomenon called magnetic reconnection, which happens throughout the universe and can accelerate particles up to nearly the speed of light.

NASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #spacetoground to talk to us.

NASA's Kennedy Space Center is midway through its transition from government-focused launch facility to multi-user spaceport capable of handling the needs of NASA's space exploration ambitions as well as commercial companies.

@NasaSpaceWonders39

@NasaSpaceWonders39

NASA scientists used tree rings to understand past droughts and climate models incorporating soil moisture data to estimate future drought risk in the 21st century @NasaSpaceWonders39

@NasaSpaceWonders39

NASA is investing in the future by advancing its capabilities and developing transformative technologies required to reach the challenging destinations that await exploration. The Space Technology Mission Directorate is building, testing and flying these cutting-edge technologies today.@nasaspacewonders39

Liftoff of MMS

MMS and Atlas V Readied for Launch

A Moment with Scott Kelly

NASA's Dawn mission will arrive at Ceres on March 6, 2015, and will be the first spacecraft to explore a dwarf planet. Ceres is the largest body in the main asteroid belt. At the time of its discovery in 1801 it was considered a planet and later demoted.

ScienceCasts: Studying Earth’s Magnetic Personality

Space Station Live: Go for EVA 31

International Space Station Astronauts Conduct Third Spacewalk in Eight Days

The people who get to see the Earth from space marvel at its beauty, the colors, the fragility they feel about the planet 250 miles below them. Now it’s your turn: this ultra-high definition video, captured during the International Space Station’s Expedition 65, allows you an extended, appreciative gawk at the home planet in all its glory. Hit play, and go into orbit mode. This footage was shot from the International Space Station between April 17, 2021 – Oct. 17, 2021.

NASA’s Solar Dynamics Observatory — SDO — has now been watching the Sun non-stop for over a full decade. From its orbit in space around the Earth, SDO has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years. This information has enabled countless new discoveries about the workings of our closest star and how it influences the solar system. With a triad of instruments, SDO captures an image of the Sun every 0.75 seconds. The Atmospheric Imaging Assembly (AIA) instrument alone captures images every 12 seconds at 10 different wavelengths of light. This 10-year time lapse showcases photos taken at a wavelength of 17.1 nanometers, which is an extreme ultraviolet wavelength that shows the Sun’s outermost atmospheric layer — the corona. Compiling one photo every hour, the movie condenses a decade of the Sun into 61 minutes. The video shows the rise and fall in activity that occurs as part of the Sun’s 11-year solar cycle and notable events, like transiting planets and eruptions. The custom music, titled “Solar Observer,” was composed by musician Lars Leonhard (https://www.lars-leonhard.de). While SDO has kept an unblinking eye pointed towards the Sun, there have been a few moments it missed. The dark frames in the video are caused by Earth or the Moon eclipsing SDO as they pass between the spacecraft and the Sun. A longer blackout in 2016 was caused by a temporary issue with the AIA instrument that was successfully resolved after a week. The images where the Sun is off-center were observed when SDO was calibrating its instruments. SDO and other NASA missions will continue to watch our Sun in the years to come, providing further insights about our place in space and information to keep our astronauts and assets safe.

Everything that happens on the International Space Station revolves around one thing: Earth, sixteen times a day! So for Earth Day 2021, NASA offers a gift you can’t get anywhere else with this leisurely view of our home planet, from 250 miles up, rendered in extraordinary ultra-high definition video. Hit play, relax and enjoy. This 4K footage was recorded between 2019 and 2020.

On the left side of the frame is the full circle of the Sun. It appears in a golden yellow color, but splotchy and with thin yellow wisps extending from the surface. Some areas are very bright and others almost black. The whole Sun rotates steadily, with one full rotation taking 12 minutes in this time lapse. There are usually only a few bright regions visible at a time and they shift and flash like small fires. From these regions there are wispy loops reaching up above the surface that rapidly change shape and size. On the right side of the frame are two white-outlined squares with enlargements of interesting regions of the Sun.

Expedition 43 Crew Departs for Kazakh Launch Site

NASA | Arctic Sea Ice Sets New Record Winter Low

Space to Ground : Preparing for Launch : 3/20/15