When astronauts travel in space they can't see or even feel radiation. However, NASA's Human Research Program (HRP) is studying the effects radiation plays on the human body and developing ways to monitor and protect against this silent hazard.
NASA's Terra satellite captured an infrared image of Typhoon Banyan that showed the strongest storms were being pushed northeast of the center from wind shear.
NASA's Aqua satellite provided an infrared look at the power within Atlantic Hurricane Gert and saw the hurricane had very cold cloud top temperatures.
Without advanced sensing technology, humans see only a small portion of the entire electromagnetic spectrum. Satellites see the full range -- from high-energy gamma rays, to visible, infrared, and low-energy microwaves. The images and data they collect can be used to solve complex problems. For example, satellite data is being harnessed by researchers at the University of Illinois for a more complete picture of cropland and to estimate crop yield in the US Corn Belt.
NASA's Mars 2020 mission, which will look for signs of past life on Mars, will use smart methods originally developed to find the oldest life on Earth, according the mission's Deputy Project Scientist, Dr Ken Williford. The 2020 mission will make coordinated measurements that could detect signs of ancient life - or biosignatures - in their original spatial context. These techniques, known as 'spatially resolved biosignature analysis' derive from geochemical analysis of early life on Earth.
Observations of 'Jellyfish galaxies' with ESO's Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly. The results appeared today in the journal Nature.
Jet material ejected from a black hole is magnified in new observations from Caltech's Owens Valley Radio Observatory.
Using seven spacecraft, along with computer models, scientists have pieced together the journey of a coronal mass ejection from the Sun outward to Mars, Comet 67P, Jupiter and even the New Horizons spacecraft now beyond Pluto.
Typhoon Banyan's eye became visible again in satellite imagery from NASA-NOAA's Suomi NPP satellite. A visible image showed powerful storms tightly would around Typhoon Banyan's center as it moved through the Pacific Ocean.
Ten spacecraft, from ESA's Venus Express to NASA's Voyager-2, felt the effect of a solar eruption as it washed through the solar system while three other satellites watched, providing a unique perspective on this space weather event.