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Ask the Astronomers Live

Monthly live chats with real astronomers give you the chance to ask questions and find out what makes the universe tick.
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Seeing New Frontiers with NASA's James Webb Space Telescope

The James Webb Space Telescope is NASA's next major space observatory. With its 20 foot (6 meter) diameter mirror and its vantage point one million miles (1.5 million km) away from the Earth, it will study everything from the earliest stars in the history of the Universe, to planets orbiting other stars, to asteroids in our own solar system. To get a sense of how this telescope works and what will be some of the science it will do first, come hear our two guests who are involved in both building and using the telescope.
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A Planet In a Galaxy Far, Far Away

A planet may have been detected in a galaxy outside of our own. There are thousands of planets detected around stars in our own Milky Way galaxy, but for the first time we may have detected a planet in another galaxy, called the Whirlpool Galaxy, which is more than 23 MILLION lightyears away.
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Your M87 Galaxy Images: Standouts of NASA's Astrophoto Challenges 2021

Join us to view the standout entries from NASA's Astrophoto Challenges 2021.
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'Oumuamua: Space Rock or Alien Tech?

In 2017 astronomers remarkably detected the first known example of an object originating from OUTSIDE of our solar system as it was briefly passing THROUGH our solar system. Originally designated 1I/2017, it was soon given the name ‘Oumuamua (pronounced oh MOO-uh MOO-uh), which is Hawaiian for “a messenger from afar arriving first,” or more simply, "scout.”
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What Would YOUR Galaxy Look Like?

Make your own images of the amazing galaxy M87— host to a supermassive black hole — using data from NASA’s space telescopes or ground based telescopes. Try these challenges and your entry could be selected as a standout for recognition from NASA scientists!
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A Wake in the Dark (Matter)

What happens when you map out the farthest stars in our Milky Way galaxy? You can trace how the gravity of a neighboring galaxy affected those distant stars' positions as our neighbor heads to a collision with our galaxy, leaving a wake among those stars. You can also use this wake to study the properties of dark matter, since dark matter does not emit or absorb light, and so is very hard to study. But dark matter does have gravity, and different theoretical versions of dark matter result in different gravitational tugs on those far out stars, resulting in different potential wakes left behind our in-falling neighbor!
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Diving into the Deep End of the Universe

When the Hubble Space Telescope imaged a seemingly empty region of sky for over 11 days, it turned out to not be empty at all, but full of the faintest and farthest galaxies in the Universe.
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150K Volunteers Find the Sun's Smallest Neighbors

Learn how you can help astronomers discover new worlds!
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How to Weigh an Exoplanet

Come learn the latest about 7 Earth-sized planets around a nearby star!
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Gravity : The Ultimate Magnifying Glass

How does the gravity of a cluster of galaxies magnify the far universe?
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Hunting Monster Black Holes

Where are black holes located and how do we find them?
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Listening to Space Images

What if we converted an image of the Milky Way's center to sound? What would you hear? Phil LaMarr takes us on a journey of converting the Milky Way's sights to sounds with Kim Arcand and Matt Russo.
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Careers in Planet Hunting

What are planets around other stars really like, and what kinds of people devote their careers to studying them?
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A 3D Look Into the Orion Constellation

What does the most amazing nebula in the sky look like in 3d? And what do we know about this incredible birthplace of baby stars and planets?
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How Do You Make a Picture of a Galaxy?

Discover the mysteries of the strangely explosive starburst galaxy M82, and see the many versions of it submitted by people from all over the world who participated in NASA's Astrophoto Challenges.
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Supernovas! Ask an Astronomer Live Apr. 9th 2020

What happens when the largest stars in the universe go boom? Astronomers Schuyler van Dyk (Caltech-IPAC) and Bill Blair (Johns Hopkins University) talk all about some of the biggest explosions around and how a lot of stuff in you and the world around you came from them billions of years ago.
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How Do Stars Form? Ask an Astronomer Live: Feb. 18 2020

When we look at the night sky we are dazzled by all the stars we see, but how do those stars form? Check out our live chat with NASA scientists to see how stars are born!
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Universe Unplugged Live Chat: Dec. 4 2019

When we look for exoplanets, planets beyond our own solar system, we focus on the habitable zone… But … what’s that mean?! Tune into our live video chat with NASA scientists.
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Universe Unplugged Live Chat: Nov. 1 2019

When we look for exoplanets, planets beyond our own solar system, we focus on the habitable zone… But … what’s that mean?! Tune into our live video chat with NASA scientists.
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Universe Unplugged Live Chat: Aug. 27 2019

When we look for exoplanets, planets beyond our own solar system, we focus on the habitable zone… But … what’s that mean?! Tune into our live video chat with NASA scientists.