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Scientists learn the basic properties of stars by analyzing the light they emit. Clarifies how brightness and luminosity are determined, discusses stellar parallax, and explains star color and characteristics. Focuses on yellow, blue, and red stars, white dwarfs, red giants, black holes, and supernovae.
(Source: DCMP)
Shares a broad look at stars--their formation, life, and types of death. Mentions red giants, blue stars, supernovas, red dwarfs, black holes, and others. Notes that astronomers study a star's light to learn about it. Projects what will happen to our star, the sun.
Students explore the outer planets of the solar system. Vivid, colorful images transmitted by exploratory spacecraft serve as the basis of this video tour of Jupiter, Saturn, Uranus, and Neptune. Often referred to as the "gas giants," the unique features of these large and distant planets are described. Jupiter's Giant Red Spot, Saturn's colorful rings, and the fierce storms of Neptune are highlights of the program. Important terminology includes: sun, rotation, revolution, orbit, ellipse, gravity, inertia, telescope, Hubble telescope, exploratory spacecraft, asteroid belt, meteoroid, and comet.
In this footage, two citizen scientists are studying butterflies and conducting biological surveys of varied ecosystems in the Red Hills and Apalachicola National Forest. They document the wide diversity of butterflies in the region. Part of the "Roaming the Red Hills" series.
Mars definitely has a reddish tint, and even the ancient Egyptians called Mars “The Red One.” Where does the redness come from? The rocks on Mars are full of iron, and the dust from those rocks swirls around the atmosphere, which makes the planet appear red. Part of the “Mars in a Minute” series.
Christmas Island, discovered December 25, 1643, is just a spec of land in the Indian Ocean. The annual red crab migration at the beginning of the rainy season, however, is so massive it can be seen from the air. It has been named a wonder of the natural world. Follows this terrestrial arthropod from its rainforest burrow, across dangerous landscape to the ocean to mate.
Molecular biologist Scott Santos and his team at Auburn University are studying an unusual and endangered ecosystem in Hawaii called Anchialine pools. A threatened ecosystem, Anchialine pools are inland lava depressions found near the ocean that feed off fresh water aquifers. Little is known about the creatures and plants that live in these brackish waters, but a number of the lava pools are being destroyed by invasive species and development. With support from the National Science Foundation, Santos and his team captured video and photographs of this unique habitat during a two month field study. He hopes his research will help save the pools before they totally disappear. One of the most famous creatures in the Anchialine pools is a legendary tiny red shrimp.
Bill Nye goes deep inside Jupiter’s mysterious Great Red Spot. First discovered over three centuries ago, this super storm is a gigantic, swirling mass of gas and clouds that is bigger than three Earths combined. NASA’s “Juno” mission hopes to reveal many of the secrets of the Great Red Spot. Part of the “Why With Nye” series.
Goliath groupers are the largest of the groupers in the Atlantic basin. They were once so overfished in the Southeastern United States, they were considered for listing under the Endangered Species Act. Thankfully, a dedicated group of marine scientists worked to prompt NOAA to ban all of their harvest. This action in the early 1990s gave the grouper time to recover and gave scientists time to learn more about this fish.
The Red Centre of Australia is one of the most inhospitable environments on Earth, and yet it teems with an extraordinary array of wildlife. Most of which is found nowhere else. Some of the secrets of this location include the diversity of Australia's various environments. Part of the "Nature's Microworlds" series.
In part six of the exploration of north Florida and south Georgia, children immerse themselves in turtles, frogs, fish, and butterflies found living along the Ochlockonee River. Part of the "Roaming the Red Hills" series.
In this special episode, host Jeff Corwin dives alongside brave men and women of our armed forces who were injured in the line of duty. As these wounded veterans experience the wonder of Georgia Aquarium and swim alongside giant whale sharks, they also find the strength to heal. Jeff makes new friends, listens to heroic stories, and reminds us all to never forget the people who keep our country safe.
The gray whale has survived the threat of extinction throughout the nineteenth and twentieth centuries. Today, these wonderful giants find refuge in the lagoons of Ojo de Liebre and San Ignacio. These sanctuaries also promote responsible tourism and sustainable fishing methods. Part of the "Bios: Nature and Society" series.
Mars is actually cold. Mars is about 50 million miles farther away from the Sun than Earth. That means it gets a lot less light and heat to keep it warm. Part of the “Mars in a Minute” series.
Mars is the planet in our solar system most similar to Earth. Rumors of life on it may be substantiated as NASA orbiters and rovers discover new evidence of frozen water just beneath the rusty soil. Did alien life exist there? As Earth reels with the effects of global warming, Mars becomes the most likely candidate for eventual human habitation. Cutting-edge computer graphics are used to show what life would be like on Mars, and to imagine what kind of life forms might evolve in alien atmospheres.
In part three of the exploration of north Florida and south Georgia, a group of students go looking for the gopher tortoise. While at Birdsong Nature Center, they learn the importance of the turtles' burrows. Part of the "Roaming the Red Hills" series.
Hawaii's Kilauea volcano is one of the best places on Earth to study processes within basaltic volcanoes. Its high eruption frequency, easy access to lavas, and distinct geologic setting far from plate boundaries or continents allow researchers to address fundamental problems related to active volcanoes. Another constant at Kilauea, besides the flowing lava, has been University of Hawaii geologist Mike Garcia. With support from the National Science Foundation, Garcia has been leading studies of Kilauea for a generation, adding to the extensive knowledge base on this volcano. Two of the primary goals are to determine what has triggered Kilauea’s effusive, explosive cycles over the last 2200 years and when long eruptions, such as the current one, will stop. Part of the National Science Foundation Series “Science Nation.”
Host Joel Greene finds out where all the grass goes after people mow their lawns. He also provides helpful tips for disposing of yard waste that are beneficial for the environment. Part of the Curiosity Quest Series.
With support from the National Science Foundation’s Human-Centered Computing Program (HCC), Stanford University mechanical engineer Mark Cutkosky and his team are using volunteer test subjects to find out if the way walk is wearing out their knees. One of the major problems at the root of knee pain is uneven wear and tear on the knee cartilage, which leads to arthritis. Cutkosky’s research, known as Movement Retraining, focuses on alleviating pain by analyzing and possibly changing a person's stride. The goal is to slow the rate at which arthritis progresses and thereby delay or even eliminate the need for surgery. Part of the National Science Foundation Series “Science Nation.”
Currently, cities have a fundamental role in the struggle against climate change and harmful environmental practices. But, at the same time, major global cities consume more than two thirds of the world’s energy and release seventy percent of the global emissions of carbon dioxide. Climate change has become part of the worldwide agenda for major cities as they develop policies and practices to protect the environment and reduce greenhouse gas emissions. Chapter 2 of Air: Climate Change Series.
Showing collections 1 to 4 of 4
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of Chemistry related resources
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A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
3D models and images of the entire periodic table of elements
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