Many starfish species sold as pet fish are omnivorous scavengers; however, some species can also act as predators of coral polyps and fish! Starfish probe their prey with their arms before enveloping it in their bodies. Once inside, their stomachs protrude through their mouths to release acid that dissolves the inedible shells and operculum before […]
What Do Starfish Eat? Read More »
Spacecraft are vehicles designed to travel in outer space. They may be manned or unmanned vehicles and can transport payloads, cargo, or crewmembers safely to their destinations. Spacecraft include Earth-orbiting satellites, space probes and rovers as well as modules comprising the International Space Station. Starships designed specifically for interstellar travel may also qualify as spacecraft.
What Is a Spacecraft Plural? Read More »
Sea turtles must dive to considerable depths in search of food, yet their bodies are designed so as not to trap harmful gases during descent. Diets of turtle species vary significantly. Hawksbills live in coral reef environments and are carnivorous eaters of sponges; green turtle hatchlings consume both sea grasses and algae for sustenance. Leatherbacks
What Does a Sea Turtle Eat? Read More »
Mercury is the fastest planet in our solar system, orbiting the sun every 88 days and being the innermost and smallest planet. It was named for Roman messenger god Mercury. Babylonians called this planet Nabu; Greeks recognized it as Apollo when seen in the morning sky and Hermes when seen at sunset; later alchemists associated
What is Mercury Named After? Read More »
Astronauts traveled on multiple spacecrafts to reach the space station. Engineers carefully evaluated every component in each craft. Space can be defined as any place, or space can also be used more generally to refer to any object that lies beyond Earth and its atmosphere; stars for instance exist within this definition of the term.
What is a Spacecraft? Read More »
On January 28th 1986, NASA’s space shuttle Challenger disintegrated within 73 seconds after launch and killed all seven of its crew members – Christa McAuliffe was among them and Francis “Dick” Scobee, Michael Smith, Ronald McNair, Ellison Onizuka and Judith Resnik were also aboard this vessel. Tragic events unfolded due to the breakdown of rubber
What Spacecraft Blown Up? Read More »
Since scientists started studying Mars, much has been learned about it. Robotic spacecraft have even orbited it and touched down on its surface. Mars is a smaller planet than Earth with lower mass, leading to reduced gravity forces and thus lower gravity forces on this world. Mass Mars, also known as “the Red Planet,” is
What Is the Weight of Mars? Read More »
Spacecraft are vessels specifically engineered for travel and operation in outer space, featuring life support systems, science instruments and accommodations for crew. Some spacecraft are unmanned while others can carry people. Manned spacecraft are used to fly astronauts directly to the International Space Station and other planetary destinations while unmanned ones conduct scientific research. Aldrin
What Is a Spacecraft? Read More »
Spacecraft designers craft hardware specifically tailored for outer space travel. Ranging from orbiting satellites and space vehicles that travel between planets to missions that explore distant corners of space, each piece must withstand its challenging surroundings. After adopting a mission, detailed designs are drawn up and Engineering Models (EM) and Qualification Models (QM) constructed. These
Spacecraft Design – What Goes Into a Spacecraft? Read More »
