Castro Valley is home to the Randall Museum of Art, which is housed in a former Methodist church. The museum includes a collection of regional,...
Sunset
Twilight
Darkness
Most people know that sunset is the time when the sun goes down. But did you know that the sun doesn't actually set? Instead, Earth rotates into darkness, giving us the illusion that the sun is setting. So what causes sunset?
Well, it's a combination of things. The Earth's atmosphere scatters sunlight in every direction, but blue and violet light are scattered more than other colors. This is why the sky is usually blue during the daytime. As the sun gets lower in the sky, the atmosphere becomes thicker and more dense.
This scattering of sunlight happens to a greater extent, and we see red and orange light more than blue and violet light. That's why sunset is usually a beautiful red or orange color. So next time you see sunset, remember that you're actually seeing Earth rotate into darkness!
Castro Valley, located in Alameda County, is a suburban city of over 100,000 residents in the East Bay Area of the San Francisco Bay Area. Castro Valley is bordered by I- 580 to the south and east, the city of Pleasanton to the north, and Montclair to the west. Castro Valley's ZIP code is 94546.
Castro Valley is named after Don Castro, a county commissioner and developer who played a significant role in the area's growth. The Castro Valley area was once the site of a Vallejo sheep ranch, and was also the home of a branch of the United States Postal Service. The U.S. census reported that the population of Castro Valley was 106,641 as of the 2010 census.
Castro Valley is located at 37 degrees latitude north latitudes and 121 degrees east longitudes. The nearest state capital is Sacramento; the nearest metropolitan area is the Bay Area. According to the United States Census Bureau, the city has a total area of , of which is land and is water.
Castro Valley experiences a Mediterranean climate characterized by cool, wet winters and hot, dry summers. According to the Köppen Climate Classification system, Castro Valley has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
Notable landmarks in Castro Valley include the University of California, Santa Cruz (UCSC) and the Pleasanton BART station. The UCSC campus is adjacent to the city center and the Caldecott Tunnel connects Castro Valley to the Hillsborough district of east Pleasanton. Castro Valley is home to Willie Mays Park, a privately owned public park that includes a recreation center, a fitness area, a pond, bike paths and several tennis courts. The park honors Willie Mays, a Hall of Fame outfielder who played for the New York Mets, and was born and raised in nearby Hayward.
Castro Valley is home to the Randall Museum of Art, which is housed in a former Methodist church. The museum includes a collection of regional, national, and international art. Other notable museums in the city include the Berkeley Art Museum and Pacific School of Religion.
Castro Valley is served by two major state highways, I-580 and I-680. The city is also served by Highway 24, which connects Castro Valley to nearby Pleasanton. The city is served by BART, ACE and AC Transit buses.
Notable landmarks in Castro Valley include the University of California, Santa Cruz (UCSC) and the Pleasanton BART station. The UCSC campus is adjacent to the city center and the Caldecott Tunnel connects Castro Valley to the Hillsborough district of east Pleasanton.
Castro Valley is home to the Randall Museum of Art, which is housed in a former Methodist church. The museum includes a collection of regional, national, and international art. Other notable museums in the city
}As the sun sets, the sky slowly grows dark. For many people, this is a time to relax and wind down for the day. But have you ever wondered exactly when it gets dark? The answer may surprise you.
Did you know that darkness actually begins long before the sun sets? As the sun gets lower in the sky, its light has to travel through more atmosphere. This filters out some of the blue light, making the sun look redder. At the same time, shadows get longer and darker. So by the time the sun finally dips below the horizon, darkness has already begun to fall.
Of course, not all places on Earth experience darkness at the same time. Near the equator, the sun sets and rises almost directly overhead. This means that there is less of a difference between daytime and nighttime. Closer to the poles, however, the sun stays low in the sky for much of the year. This leads to longer periods of darkness during wintertime.