Cards starting with H

40,576 cards. Page 445 of 677.

26641. How astronauts monitor muscle loss while living in microgravityThis timelapse captures ESA astronaut Andreas Mogensen and Roscosmos cosmonaut Sergei Volkov managing the MARES system. Over three days, they unpack, set up, and test this special…
26642. How astronauts navigate the dark using an orbital internet backboneOperating a rover from the International Space Station is not a simple remote-control task. It requires a sophisticated network capable of surviving the constant disruptions of or…
26643. How astronauts once tackled 111 tiny screws to revive a broken telescopeWhen a power supply failure silenced Hubble's most versatile spectrograph in 2004, NASA faced a daunting orbital challenge. Restoring the instrument required a high-stakes mission…
26644. How astronauts prepare a gourmet tortilla in microgravityThis video demonstrates how ESA astronaut Samantha Cristoforetti uses her personal 'bonus food' to recreate familiar flavors while living aboard the International Space Station du…
26645. How astronauts prepare for life aboard the International Space StationBecoming an astronaut requires more than just bravery. To survive a six-month mission, candidates must navigate a rigorous, multi-year training pipeline that spans fundamental eng…
26646. How astronauts prepare for the high-stakes transition from orbit back to EarthLiving in microgravity is only half the battle for astronauts. As missions conclude, crews must master complex departure procedures, ensuring a safe reentry through Earth's atmosp…
26647. How astronauts prepare for the journey to the International Space StationBefore reaching orbit, space crews undergo rigorous training and strict quarantine protocols. From traditional ceremonies in Russia to intensive readiness checks in Florida, every…
26648. How Astronauts Prepare for the Rigorous Demands of Long-Duration Space ExplorationFrom high-speed transit to complex biological experiments, life aboard the International Space Station is a masterclass in precision. As crews prepare for missions to the Moon and…
26649. How Astronauts Prepare for the Rigors of Long-Term Spaceflight and Lunar ExplorationBefore launching to the International Space Station, crews undergo rigorous final approvals and safety preparations. Once aboard, the focus shifts to vital research, from testing …
26650. How astronauts prepare for their journey to the International Space StationBefore launching to the International Space Station, crews undergo rigorous final qualification training. This video highlights the Expedition 31 and 32 team as they complete thei…
26651. How astronauts prepare the International Space Station for commercial spacecraft arrivalsThis video documents a critical spacewalk conducted by NASA's Shane Kimbrough and ESA's Thomas Pesquet. They perform essential maintenance and hardware relocations to ensure the s…
26652. How astronauts prepare the International Space Station for future docking and solar powerMaintaining an orbiting laboratory requires precise extravehicular activities. From installing new docking ports for commercial spacecraft to preparing power channels for roll-out…
26653. How astronauts prepare the station for future commercial spacecraft arrivalsIn this footage, NASA astronauts Shane Kimbrough and Peggy Whitson perform a critical spacewalk to connect a vital docking component, ensuring the station is ready for upcoming co…
26654. How astronauts remotely operate robotic explorers from the International Space StationAstronauts are testing new ways to manage robots on planetary surfaces from orbit. By using specialized haptic interfaces, they can switch between direct manual control and autono…
26655. How Astronauts Repaired Critical Power and Navigation Systems on the International Space StationThis video covers the successful spacewalk by Suni Williams and Aki Hoshide to restore power distribution and robotic capabilities on the International Space Station. It provides …
26656. How astronauts saved the Hubble Space Telescope from a blurry, multi-billion dollar mistake.Launched in 1990, the Hubble Space Telescope arrived in orbit with a primary mirror ground to the wrong specification. This video covers the 1993 Servicing Mission 1, the daring r…
26657. How astronauts snack during long-duration missions in spaceExplore a unique recipe designed for the International Space Station. This video features Argotec chef Stefano Polato demonstrating a special bonus snack prepared for ESA astronau…
26658. How astronauts spend their holidays in orbitWhile most people celebrate on Earth, the crew of the International Space Station prepares for Christmas and New Year's in microgravity. This video features NASA's Shane Kimbrough…
26659. How astronauts stay still while talking to you from orbitStanding upright in microgravity is a physical impossibility without a clever mechanical workaround. When astronauts host live Q&A sessions with students on Earth, they face a con…
26660. How astronauts stay upright while chatting with students from 260 miles above EarthEver wonder how astronauts remain perfectly still during live video calls from orbit? In microgravity, even a slight movement can send a person spinning. To solve this, crew membe…
26661. How astronauts stay upright while chatting with students from orbitStanding still in microgravity is a physical impossibility without the right hardware. When astronauts host live Q&A sessions with students from the International Space Station, t…
26662. How astronauts survive six days in the dark, humid caves of SardiniaThis video explores the ESA's CAVES mission, where astronauts from five different space agencies lived in isolated, underground environments to study the psychological effects of …
26663. How astronauts survive the bumpy descent from the International Space StationAfter 186 days orbiting the planet, Tim Peake and his crew faced a high-stakes return to Earth. To survive the descent, they relied on a combination of parachutes and retro-rocket…
26664. How astronauts train for deep space in the caves of SardiniaThis video log captures the first day of ESA's CAVES mission. Six astronauts from various nations enter the Sardinian underworld to simulate life in outer space, testing how multi…
26665. How astronauts train for lunar geology in the mountains of NorwayThis video follows European Space Agency astronauts as they scout new training routes in Lofoten, Norway. The mission is to prepare spacefarers for the specific geological challen…
26666. How astronauts train for space by descending into Italian cavesThis video documents the first day of the CAVES 2014 mission. Participants enter the Sa Grutta cave system in Sardinia to simulate the isolation and technical challenges of spacef…
26667. How astronauts train for space by exploring deep Italian cavesThis video diary follows astronaut Andreas Mogensen as he navigates the Sa Grutta cave system. It offers a rare look at the specialized photography and teamwork required during in…
26668. How astronauts train for space by exploring deep underground cavesThis video follows the second day of the CAVES mission in Italy. It shows how astronauts and engineers use subterranean environments to simulate the intense teamwork and decision-…
26669. How astronauts train for space by living beneath the oceanESA astronaut Andreas Mogensen demonstrates how the Aquarius underwater habitat serves as a vital training ground. By simulating the isolation of a space station, these missions p…
26670. How astronauts train for the isolation of deep space undergroundThis video captures the final day of the CAVES 2014 mission in Sardinia. Watch as astronauts and engineers navigate the Sa Grutta caves to master the teamwork and decision-making …
26671. How astronauts turn blue-green algae into oxygen and foodDuring her mission to the International Space Station, ESA astronaut Samantha Cristoforetti is helping students explore the frontiers of sustainable living. Through live orbital v…
26672. How astronauts upgraded the International Space Station's power supplyWatch as Expedition 50 astronauts perform a critical spacewalk to install new lithium-ion batteries. This mission involves complex electrical connections and hardware upgrades ess…
26673. How astronauts use amateur radio to connect with Earth from orbitTraveling at 17,500 miles per hour, the International Space Station crew uses HAM radio to bridge the gap between orbit and Earth, engaging students in science and technology.
26674. How astronauts use deep caves to simulate the challenges of spaceflightTo prepare for the rigors of space, astronauts descend into the Sa Grutta caves of Sardinia. This video explores how these underground systems serve as a vital training ground for…
26675. How astronauts use Earth-to-space calls to prepare for the journey to MarsOn July 31, 2015, students in Cleveland connected live with the International Space Station. Beyond a simple classroom visit, this downlink served a much larger purpose: using rea…
26676. How astronauts use music to bridge the gap between Earth and orbitFrom the International Space Station to the Crew Dragon spacecraft, musicians in orbit are proving that melody can transcend the vacuum of space. Whether performing for students o…
26677. How astronauts use robotic arms to catch massive cargo ships in orbitWatch as the International Space Station's Canadarm2 robotic arm grapples the Northrop Grumman Cygnus XL, a spacecraft carrying thousands of kilograms of vital science and supplie…
26678. How Astronauts Use Social Media to Turn Earthbound Spectators Into Virtual Crew MembersSpace exploration is no longer a one-way broadcast. Modern astronauts are using platforms like Twitter and blogs to bridge the gap between orbit and the public. By sharing everyth…
26679. How astronauts use touch to control robots in orbitThis video explores how haptic technology allows astronauts to feel what a robot touches. As Andreas Mogensen prepares for his upcoming ten-day mission to the International Space …
26680. How astronauts use virtual reality to maintain mental and physical health in spaceESA astronaut Andreas Mogensen demonstrates how virtual reality technology is being tested on the International Space Station to support astronaut well-being. By simulating nature…
26681. How astronauts watch the World Cup from orbitEver wonder how a sports fan in zero gravity keeps up with the world's biggest tournament? This video explores the technology and logistics required to broadcast live soccer match…
26682. How astronomers are finally capturing the chemical fingerprints of distant alien worldsAstronomers have identified over 1,000 exoplanets, but we are only now beginning to understand their true nature. This video explores how the American Museum of Natural History's …
26683. How astronomers build a telescope the size of Earth using simple math and rotation.Aperture synthesis allows scientists to capture images with the clarity of a massive, planet-sized lens without building one. By combining signals from multiple smaller telescopes…
26684. How astronomers built a telescope the size of Earth to photograph a black holeBlack holes were once considered impossible, then theoretical, and finally, in 2019, they became real. Capturing an image of an object so dense that light cannot escape its gravit…
26685. How astronomers built an Earth-sized telescope to capture a black hole's imageCapturing the black hole at the center of our galaxy requires technology beyond a single observatory. This video details how the Event Horizon Telescope functions by linking multi…
26686. How astronomers capture the vast, hidden details of the southern night skyThis video explores the specialized instruments at the Paranal Observatory designed to map the heavens. By utilizing two distinct survey telescopes, researchers can observe the un…
26687. How astronomers captured the first image of a supermassive black hole in M87The Event Horizon Telescope produced the first genuine photograph of a black hole, revealing the supermassive giant at the heart of the M87 galaxy. This video breaks down the comp…
26688. How astronomers captured the first image of the supermassive black hole at our center.This video explains the technical achievement behind imaging Sagittarius A*, the supermassive black hole at the heart of the Milky Way. It details the use of Very Long Baseline In…
26689. How astronomers classified the mysterious phenomenon of witnessing unidentified flying objects at close rangeIn 1972, astronomer J. Allen Hynek introduced a rigorous classification system for UFO sightings. By defining a close encounter as an event occurring within 150 meters, he aimed t…
26690. How astronomers climb from radar pings to the edge of the universeNo single technique can measure every distance in space. Astronomers instead build a ladder: radar fixes the scale of the Solar System, geometry reaches nearby stars, and known-br…
26691. How astronomers combine space and ground telescopes to map the history of the universeThe Great Observatories Origins Deep Survey, or GOODS, represents a decade-long collaboration between the most powerful ground-based and space-borne telescopes. By observing the s…
26692. How astronomers compete for precious time on the world's most powerful telescopesSecuring time on an ESO telescope is a rigorous process. This video examines how astronomers submit proposals and how the Observing Programmes Committee evaluates them to ensure s…
26693. How astronomers decode the chemical makeup of distant alien worldsSince the early 1990s, scientists have known about exoplanets orbiting distant stars. This video explains how astronomers study their atmospheres without ever seeing them directly…
26694. How astronomers finally captured the first visual evidence of a supermassive black holeThis video details the Event Horizon Telescope Collaboration's historic observation of the supermassive black hole at the center of the M87 galaxy. It explains how this visual con…
26695. How astronomers hunt for life among the galaxy's planetsThis podcast features Dr. Jo Barstow discussing the methods used to study our galaxy's diverse population of exoplanets and the search for life beyond Earth.
26696. How astronomers hunt for the rocky remnants of our solar systemBeyond the visible stars lie hundreds of thousands of asteroids. This video explores how astronomers identify these celestial bodies and recounts the discovery of the very first a…
26697. How astronomers map distant worlds by watching stars flicker in the darkWhen a star dims or an asteroid rotates, it leaves a signature in the light it emits. By plotting these changes over time, astronomers create light curves—graphs that reveal the h…
26698. How astronomers map the cosmos without ever leaving EarthWe cannot physically travel to distant stars, yet we know exactly how far away they reside. By using shifting perspectives, pulsing lights, and the stretching of light itself, ast…
26699. How astronomers map the vast distances of our universeLooking at the night sky feels like looking at a flat image, but the universe is three-dimensional and unfathomably deep. This video explains the specific tools and techniques sci…
26700. How astronomers mapped the entire sky using infrared light to see through cosmic dustBetween 1997 and 2001, the Two Micron All-Sky Survey captured the heavens in short-wavelength infrared. By peering through the obscuring dust of our own galaxy, this ambitious pro…