Humanity’s farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September. Despite their vast distance, they continue to communicate with NASA daily, still probing the final frontier.
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A few NASA-funded astronomer teams are always on the hunt for potentially hazardous near-Earth objects, asteroids and comets whose orbits periodically bring them within 30 million miles of Earth’s orbit. At NASA, the Planetary Defense Coordination Office supports the search programs, while also planning and coordinating any response to possible asteroid impacts.
Getting a Feel for Eclipses explains details surrounding the August 2017 total solar eclipse. Tactile graphics provide an illustration of the interaction and alignment of the Sun with the Moon and the Earth.
Be inspired by science! Learn how to get involved with science from current opportunities to inspirational science art.
The temperature of Chamber A at NASA’s Johnson Space Center in Houston is steadily dropping, creating a frigid environment for NASA’s James Webb Space Telescope that is in stark contrast to the heat of the city.
Images of Jupiter’s Great Red Spot reveal a tangle of dark, veinous clouds weaving their way through a massive crimson oval.
High up in the clear blue noontime sky, the sun appears to be much the same day-in, day-out, year after year.
But astronomers have long known that this is not true. The sun does change. Properly-filtered telescopes reveal a fiery disk often speckled with dark sunspots. Sunspots are strongly magnetized, and they crackle with solar flares—magnetic explosions that illuminate Earth with flashes of X-rays and extreme ultraviolet radiation. The sun is a seething mass of activity.
NASA Langley Research Center is celebrating 100 years. Learn more through our commemorative artwork and graphics.
Roman Statesman Marcus Tullius Cicero said, “If you have a garden and a library, you have everything you need.”
Humans attempting someday to make Mars their home may well share the sentiments expressed by the orator from ancient Rome. As for the library – books can now be stored digitally. But how does your garden grow…in space?
With temperatures around the world climbing, melt waters from the continental ice sheets of Greenland and Antarctica are raising sea levels. Those ice sheets are melting from both above and below. Much of the ice lost from ice sheets comes from a process called calving where ice erodes, breaks off, and flows rapidly into the ocean. A large volume of ice is also lost from ice sheets melting on their surfaces.