Members Can Post Anonymously On This Site
Webb’s Ariane 5 core stage made ready
-
Similar Topics
-
By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
https://youtu.be/63uNNcCpxHI How are we made of star stuff?
Well, the important thing to understand about this question is that it’s not an analogy, it’s literally true.
The elements in our bodies, the elements that make up our bones, the trees we see outside, the other planets in the solar system, other stars in the galaxy. These were all part of stars that existed well before our Sun and Earth and solar system were even formed.
The universe existed for billions of years before we did. And all of these elements that you see on the periodic table, you see carbon and oxygen and silicon and iron, the common elements throughout the universe, were all put there by previous generations of stars that either blew off winds like the Sun blows off a solar wind, or exploded in supernova explosions and thrust their elements throughout the universe.
These are the same things that we can trace with modern telescopes, like the Hubble Telescope and the James Webb Space Telescope, the Chandra X-ray Observatory. These are all elements that we can map out in the universe with these observatories and trace back to the same things that form us and the elemental abundances that we see in stars now are the same things that we see in the Earth’s crust, we see in asteroids. And so we know that these are the same elements that were once part of these stars.
So the question of, “How are we made of star stuff?”, in the words of Carl Sagan, “The cosmos is within us. We are made of star stuff. We are a way for the universe to know itself.”
[END VIDEO TRANSCRIPT]
Full Episode List
Full YouTube Playlist
Share
Details
Last Updated Apr 28, 2025 Related Terms
General Astrophysics Astrophysics Division Chandra X-Ray Observatory Hubble Space Telescope James Webb Space Telescope (JWST) Origin & Evolution of the Universe Science Mission Directorate The Solar System The Universe Explore More
3 min read NASA Moon Observing Instrument to Get Another Shot at Lunar Ops
Article 16 mins ago 5 min read NASA 3D Wind Measuring Laser Aims to Improve Forecasts from Air, Space
Article 1 hour ago 1 min read Earth Science Showcase – Kids Art Collection
Article 3 days ago Keep Exploring Discover Related Topics
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
-
-
By NASA
NASA/Frank Michaux Technicians from NASA and primary contractor Amentum join the SLS (Space Launch System) rocket with the stacked solid rocket boosters for the Artemis II mission at NASA’s Kennedy Space Center in Florida on March 23, 2025. The core stage is the largest component of the rocket, standing 212 feet tall and weighing about 219,000 pounds with its engines. The stage is the backbone of the rocket, supporting the launch vehicle stage adapter, interim cryogenic propulsion stage, Orion stage adapter, and the Orion spacecraft.
Artemis II is the first crewed test flight under NASA’s Artemis campaign and is another step toward missions on the lunar surface and helping the agency prepare for future human missions to Mars.
Image credit: NASA/Frank Michaux
View the full article
-
By European Space Agency
Image: ESA's Atomic Clock Ensemble in Space at NASA's Kennedy Space Center View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.