The latitude that receives the sun’s rays directly overhead on June 21st is 23.5 degrees north. This latitude is also known as the Tropic of Cancer.
Earth does not rotate on its perpendicular axis. Instead, it is tilted by an angle of 23.5 degrees as measured from the line that is perpendicular to the planet’s orbit around the sun. The tilt in the earth’s axis causes the seasons. As the earth revolves around the sun, the different hemispheres are closer to the sun at different times.
In June, the earth’s tilt causes the northern hemisphere to be closer to the sun. June 21st marks the June solstice, when the sun is directly above the Tropic of Cancer. After this day, the tilt of the planet causes a shift and the sun begins to move closer to the southern hemisphere. By December 21st, the December solstice, the sun is directly above the Tropic of Capricorn, which is 23.5 degrees south of the equator.Learn More
The reason there are four seasons is that the earth is tilted 23.5 degrees on its axis. For half the year, this tilt causes one half of the earth to tilt toward the sun while the other half tilts away. This changes every six months, creating the seasons.Full Answer >
The four seasons are spring, summer, fall and winter. The seasons change automatically throughout the year. Each season is characterized by its own unique weather patterns.Full Answer >
The transit of Venus happens every 100 years. The last one was in June 2012, and the next one occurs in 2117. This happens as Venus directly passes between the Earth and the Sun. This once-in-a-lifetime astronomical alignment has been witnessed eight times since the telescope was invented. These eye-witness-accounts occurred in 1631, 1639, 1761, 1769, 1874, 1882 and 2004, and the last was in June 2012.Full Answer >
Sep. 11, 2001, was a Tuesday. On that day, which is often referred to as 9/11, four planes were hijacked by terrorists to carry out suicide attacks against U.S. targets.Full Answer >