Among the many areas NASA studies are solar activity, sea level rise, the temperature of the atmosphere and ocean, the health of the ozone layer, air pollution, and changes in sea ice and land ice..
In the past, astronomy has been used to measure time, mark the seasons, and navigate the vast oceans.
As one of the oldest sciences astronomy is part of every culture's history and roots.
It inspires us with beautiful images and promises answers to the big questions..
There are approximately 200 billion trillion stars in the universe.
Or, to put it another way, 200 sextillion.
That's 200,000,000,000,000,000,000,000 The number is so big, it's hard to imagine..
The Astronomy and Physics Directorate (APD) formulates, develops, and operates state-of-the-art space missions and instruments in astronomy and fundamental physics, addressing the questions: “How did the Universe begin and how has it evolved?”; “How does the Universe work?”; and “How has life come to be?” The .
We don't just work in space.
More than 18,000 professionals work around the country in laboratories and wind tunnels, on airfields and in control rooms and office buildings to answer some of life's fundamental mysteries: What's out there in space?.
The universe at approximately 13.8 billion years old is much older than Earth.
Earth is 4.5 billion years old.
We know this thanks to a method called radiometric dating, which measures the amount of radioactive decay of isotopes in a sample to calculate how old that sample must be..
Most research astronomers have doctorate degrees in physics or astronomy and also bachelor's and/or master's degrees in a physical science, usually physics or astronomy.
It takes about 10 years of education beyond normal high school education to become a research astronomer..
NASA's goal in Astrophysics is to "Discover how the universe works, explore how it began and evolved, and search for life on planets around other stars." Three broad scientific questions emanate from these goals..
The multidisciplinarity of the workforce at NASA (astrophysicists, astrochemists, chemists, physicists, planetary scientists, theoreticians, astronomers) makes it a unique environment for doing Laboratory Astrophysics research..
aphelion, in astronomy, the point in the orbit of a planet, comet, or other body most distant from the Sun.
When Earth is at its aphelion in early July, it is about 4,800,000 km (3,000,000 miles) farther from the Sun than when at its perihelion in early January..
Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..
Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..
Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..
Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..
Most research astronomers have doctorate degrees in physics or astronomy and also bachelor's and/or master's degrees in a physical science, usually physics or astronomy.
It takes about 10 years of education beyond normal high school education to become a research astronomer..
Astronomy is the scientific study of everything in outer space.
Astronomers and other scientists study stars and galaxies, most of which are many light-years away from Earth..
Astronomy is the study of everything in the universe beyond Earth's atmosphere.
That includes objects we can see with our naked eyes, like the Sun , the Moon , the planets, and the stars .
It also includes objects we can only see with telescopes or other instruments, like faraway galaxies and tiny particles..
United States of America: National Aeronautics and Space Administration (NASA) NASA headquarters, in Washington, D.C., exercises management over the NASA Field Centers, establishes management policies, and analyzes all phases of the ISS program..
We are scientists, engineers, IT specialists, human resources specialists, accountants, writers, technicians, and many other kinds of people working together to break barriers to achieve the seemingly impossible..
