Bozeman Science
Meselson-Stahl Experiment
Paul Andersen explains how the Meselson-Stahl experiment was used to prove that DNA copied itself through a semi-conservative process. They grew E. coli in a medium containing heavy nitrogen (N-15). They then added the E. coli to a...
KnowMo
Problem Solving with Descriptive Statistics
The video is a lecture on problem solving descriptive statistics questions, focusing on the mean, median, mode and range. The instructor works through two examples and emphasizes the importance of logical thinking and interpretation of...
Reading Through History
Reagan's Space Shuttle Challenger Address
On January 28th, 1986, seven Americans lost their lives aboard the Space Shuttle Challenger. Schoolchildren across the nation watched the tragedy as it occurred on live television. America looked to its President to give us guidance....
NASA
Take a Spin With NASA’s WFIRST Spacecraft
On schedule to launch in the mid-2020s, NASA’s Wide Field Infrared Survey Telescope (WFIRST) mission will help uncover some of the biggest mysteries in the cosmos. The state-of-the-art telescope on the WFIRST spacecraft will play a...
Curated Video
Return to Flight: The Journey of Space Shuttle Discovery
This video provides an in-depth look at the preparations and challenges faced by NASA as they work towards the crucial Return to Flight mission of the space shuttle Discovery. Highlighting the importance of the mission for the European...
Curated Video
Spaceship One: Journey to Suborbital Spaceflight
Space Ship One is a privately built rocket, designed for sub-orbital space flight. It is carried aloft by the White Knight mother craft. The system was built in response to a challenge, known as the Ansari X Prize, for the first team...
Curated Video
The Historic First Space Shuttle Launch: Columbia's Journey into Space
This video describes the historic first launch of the space shuttle Columbia in 1981, highlighting the excitement and significance of the event. From liftoff to reentry, it details the intricate processes and tests undertaken by the crew...
One Minute History
065 Challenger Disaster - One Minute History
On January 28, 1986, seven astronauts boarded the Space Shuttle Challenger on a mission into low earth orbit. Seventy three seconds later, the shuttle began to break apart, resulting in the death of the entire crew. We honor the courage...
Curated Video
The Challenger Space Shuttle Crash
In January 1986, it had been a very cold night at NASA s Kennedy Space Centre and ice had to be removed from launch pad 39B where the Space Shuttle Challenger stood ready for its tenth flight. After take-off, the unthinkable happened.
Curated Video
Tragedy and Challenges: The Columbia Space Shuttle Disaster and its Impact on the Space Program
This video discusses the tragic loss of the space shuttle Columbia and its impact on NASA's shuttle program and the International Space Station. It highlights the challenges faced by the shuttle program, including problems with the...
Curated Video
Small Steps, Giant Leaps: Episode 7, Space Shuttle Columbia National Tour Small Steps, Giant Leaps
Mike Ciannilli, the agency’s manager of the Apollo, Challenger, Columbia Lessons Learned Program, previews the Space Shuttle Columbia National Tour.
NASA
NASA | RROxiTT: Another Step Toward Servicing Satellites in Space
NASA's Goddard Space Flight Center in Maryland and Kennedy Space Center in Florida are joining teams and efforts to test new robotic refueling technologies that could help satellites live longer in space. During the test, a robotic arm...
NASA
Take a Spin With NASA's Nancy Grace Roman Space Telescope
On schedule to launch no later than May 2027, NASA’s Nancy Grace Roman Space Telescope mission will help uncover some of the biggest mysteries in the cosmos. The state-of-the-art telescope on the Roman spacecraft will play a significant...
NASA
NASA | MMS Engineering Challenges
It's hard enough to build one spacecraft, but the Magnetospheric Multiscale Mission (MMS) is building four. Together, the spacecraft will unlock the mysteries of magnetic reconnection, when magnetic fields explosively connect and...
NASA
NASA’s Asteroid Heist: The Challenges of TAG
NASA’s first asteroid sample return mission, OSIRIS-REx, will make a daring attempt to “TAG” asteroid Bennu on Oct. 20 – touch its surface and collect a sample for return to Earth. Sample site Nightingale, the mission’s targeted touch...
Curated Video
Challenges and Triumphs: The Return of Space Shuttle Discovery
The video describes the tense and meticulous process of the space shuttle Discovery's return to Earth, highlighting the critical role of weather conditions, pilot precision, and ground support in ensuring a safe landing. Despite...
Curated Video
Challenges and Repairs: The Journey of Space Shuttle Discovery
This video provides a detailed account of the challenges faced by the space shuttle Discovery during its mission, including issues with insulating foam, protruding spacing material, and damaged thermal tiles. Despite these obstacles, the...
Curated Video
Space Shuttle Discovery: Return to Flight Mission
The video captures the intense moments leading up to the successful launch of the space shuttle Discovery, marking NASA's return to flight after the Columbia disaster in 2003. Viewers witness the meticulous preparations, technical...
PBS
100 Years of Relativity + Challenge Winners!
The results are in - on this weeks episode of Spacetime we reveal the answer to our Asteroid Challenge, as well as our T-shirt winners! Check out who saved the world!
PBS
Could LIGO Find MASSIVE Alien Spaceships?
Whenever we open a new window on the universe, we discover things that no one expected. Our newfound ability to measure ripples in the fabric of spacetime—gravitational waves—is a very new window, and so far we’ve seen a lot of wild...
SciShow
We Land on a Comet!
SciShow Space News gives you the update of the historic mission that has, for the first time ever, landed a spacecraft on the surface of a comet!
SciShow
Why It's So Hard to Land on Mars
We’ve sent more spacecraft to Mars than any other planet, but around half of the probes that have ever attempted to explore Mars have either crashed or disappeared.
The Business Professor
Understanding Insurance: Key Concepts and Relationships
This video explains the concept of insurance and the relationship between the insured party and the insurer. The video emphasizes the importance of understanding risk mitigation, the value exchanged through premiums, and the key...
SciShow Kids
How Will We Get To Mars? | Let's Explore Mars! | SciShow Kids
Mars has a ton of amazing features waiting to be explored, but we have to get there first. Thanks to our partners at the Boston Museum Of Science for helping us think about everything we need to plan a trip! Squeaks and Jessi would love...