NASA is the United States space agency and was founded in 1958 to do human and robotic exploration of the solar system and to study the universe as well.
2024年开年，NASA同时公开了另一张超新星残骸30 Doradus B（简称 30 Dor B）的照片。X-ray: NASA/CXC/Penn State Univ./L. Townsley et al.; Optical: NASA/STScI/HST; Infrared: NASA/JPL/CalTech/SST; Image Processing: NASA/CXC/SAO/J. Schmidt, N. Wolk, K. Arcand 30 Dor B所在的区域，在过...
Though NASA has not specifically allocated the unusually high$19.3 billion budget approved this...Henry, Jason
Jet Propulsion Laboratory (JPL) is a research and development center funded by the U.S. federal government and run for NASA by the California Institute of Technology (Caltech). JPL’s current work focuses on robotic exploration of the Solar System, with more than 200 funded joint collaborations...
Image courtesy NASA/JPL Please be respectful of copyright. Unauthorized use is prohibited. What is a Planet? Learn about Earth's neighborhood. Far-Out Facts • Our solar system’s eight planets come in two flavors: smaller rocky planets with solid ground (Mercury,Venus,EarthandMars) and lar...
What was it like when human beings transformed the Earth? What was it like when humans first arose on planet Earth? What was it like when mammals appeared and thrived? What was it like when life on Earth became complex? What was it like when oxygen killed almost all life on Earth...
In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on Mars by the 2030s.
NASA’s Perseverance rover seen from the Mars Reconnaissance Orbiter.NASA/JPL-Caltech/UArizona According to NASA, Perseverance is shown on the fractured bedrock of what’s known as the Máaz Formation, a feature believed to be of igneous (volcanic) origin. “The primary science target is the ...
What was it like when human beings transformed the Earth? What was it like when humans first arose on planet Earth? What was it like when mammals appeared and thrived? What was it like when life on Earth became complex? What was it like when oxygen killed almost all life on Earth...
Soil organic matter is plant, animal, and microbial residues in various states of decomposition; it is a critical ingredient — in fact the percentage of soil organic matter in a soil is among the best indicators of agricultural soil quality (http://soils.usda.gov/sqi/) (Figure 3). Soil ...