The timing of the tick life cycle is why Lyme disease exists, Ostfeld said, and if warming temperatures change the timing, climate change could have a multiplying effect on the spread of the disease.
Like it's sister spacecraft, Voyager 2 also was designed to study the edge of our solar system beyond the planets. Uranus Accomplishments: Following its flybys of Jupiter and Saturn, Voyager 2 was to become the first spacecraft to visit Uranus. Voyager 2 is the only spacecraft to have flown by Uranus. The planet displayed little detail, but gave evidence of an ocean of boiling water about 800 km below the cloud tops.
Human spaceflight is space travel with a crew or passengers aboard the spacecraft. Spacecraft carrying people may be operated directly, by human crew, or it may be either remotely operated from ground stations on Earth or be autonomous, able to carry out a specific mission with no human involvement. The first human spaceflight was launched by the Soviet Union on 12 April 1961 as a part of the Vostok program, with cosmonaut Yuri Gagarin aboard. Humans have been continuously present in space for 7