The first earthling to orbit our planet was just two years old. Her name was Laika, and she was picked up in the streets of Moscow in 1957, just a few days before the launch of Sputnik 2. Laika was a terrier mutt, and her flight aboard Sputnik 2 paved the way for space exploration during a time when scientists weren’t sure if spaceflight was safe for living organisms. Since then, humans have orbited Earth and even walked on the moon. Currently NASA is planning a mission to send astronauts to a nearby asteroid, and commercial companies are planning civilian missions to the moon. Unmanned space probes have traveled past Neptune and Pluto to the outer edge of our solar system and entered interstellar space. Space travel has come a long way since Laika, but there are still many celestial bodies waiting to be explored. What do you think will be the biggest space mission of the twenty-first century? What challenges do you anticipate that the humans or space probes will experience on this journey? What specific accommodations or technological advancements will be needed to make the mission successful?
Answers: 2
Biology, 22.06.2019 00:00
Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy
Answers: 2
Biology, 22.06.2019 01:30
What is turgor pressure, what causes it, and what does it do for a plant?
Answers: 3
Biology, 22.06.2019 03:00
Wich organism obtains its energy from dead or decaying matter
Answers: 1
Biology, 22.06.2019 11:00
Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth
Answers: 1
The first earthling to orbit our planet was just two years old. Her name was Laika, and she was pick...
Mathematics, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
Computers and Technology, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
Chemistry, 12.09.2019 05:20
Health, 12.09.2019 05:30
Mathematics, 12.09.2019 05:30
Arts, 12.09.2019 05:30
History, 12.09.2019 05:30
Mathematics, 12.09.2019 05:30
Mathematics, 12.09.2019 05:30