Friday 24 July 2015 - New Earth-like planet discovered!!!
BY: FIONA MACDONALD
As you're probably well aware, a few hours ago, NASA and SETI announced the discovery of Earth's "older, bigger cousin". Called Kepler-452b, it's the first almost-Earth-sized planet that's been found in the habitable zone of a star very similar to our Sun, and the Internet is kind of freaking out about it.
During the briefing, the scientists also announced the discovery of 11 other habitable planet candidates, so what's so special about Kepler-452b? Well, we're glad you asked, because there's quite a lot. For starters, this is our best candidate so far for an 'Earth 2.0', and it could also be the ideal place to look for extraterrestrial life.
Here's everything we know so far:
All of this is pretty damn exciting when you consider the fact that NASA has spent decades searching for a potential new home for humanity, but some of these points are worth highlighting further.
For starters, the fact that Kepler-452b is orbiting a G2-type star is hugely important, because all the other Earth-sized planets that we've found so far are orbiting stars that are cooler and smaller than our Sun.
As you're probably well aware, a few hours ago, NASA and SETI announced the discovery of Earth's "older, bigger cousin". Called Kepler-452b, it's the first almost-Earth-sized planet that's been found in the habitable zone of a star very similar to our Sun, and the Internet is kind of freaking out about it.
During the briefing, the scientists also announced the discovery of 11 other habitable planet candidates, so what's so special about Kepler-452b? Well, we're glad you asked, because there's quite a lot. For starters, this is our best candidate so far for an 'Earth 2.0', and it could also be the ideal place to look for extraterrestrial life.
Here's everything we know so far:
- Kepler-452b is orbiting a star called Kepler-452, located 1,400 light-years away in the Cygnus constellation of the Milky Way.
- The planet is 1.6 times bigger than Earth.
- Earlier research shows that planets of this size "have a good chance" of being rocky, just like Earth.
- Kepler-452b is orbiting a G2-type star, like our Sun.
- The planet is in the habitable zone, which means that it's far enough away from its sun that its water won't evaporate, but close enough so that it won't freeze.
- A year on Kepler-452b lasts 385 days, so the planet is only 5 percent further from its star than Earth is from the Sun.
- The planet is likely to have an atmosphere, lots of clouds, and possibly active volcanoes.
- Its parent star Kepler-452 is 6 billion years old (1.5 billion years older than our Sun).
- Kepler-452 has the same temperature, and is 20 percent brighter, and 10 percent larger in diameter than our Sun.
- Because it's orbiting a larger star, it's likely to be slightly warmer than Earth.
All of this is pretty damn exciting when you consider the fact that NASA has spent decades searching for a potential new home for humanity, but some of these points are worth highlighting further.
For starters, the fact that Kepler-452b is orbiting a G2-type star is hugely important, because all the other Earth-sized planets that we've found so far are orbiting stars that are cooler and smaller than our Sun.
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Pagan traditions:
Many Pagan cultures used to cut boughs of evergreen trees in December, move them into the home or temple, and decorate them. Modern-day Pagans still do. This was to recognize the winter solstice -- the time of the year that had the shortest daylight hours, and longest night of the year. This occurs annually sometime between DEC-20 to 23; most often, it is DEC-21. As the solstice approached, they noticed that the days were gradually getting shorter; many feared that the sun would eventually disappear forever, and everyone would freeze in the dark. But, even though deciduous trees, bushes, and crops died or hibernated for the winter, the evergreen trees remained green. They seemed to have magical powers that enabled them to withstand the rigors of winter.
Not having evergreen trees, the ancient Egyptians considered the palm tree to symbolize resurrection. They decorated their homes with its branches during the winter solstice.
"The first decorating of an evergreen tree began with the heathen Greeks and their worship of their god Adonia, who allegedly was brought back to life by the serpent Aessulapius after having been slain."
The ancient Pagan Romans decorated their "trees with bits of metal and replicas of their god, Bacchus [a fertility god]. They also placed 12 candles on the tree in honor of their sun god" Their mid-winter festival of Saturnalia started on DEC-17 and often lasted until a few days after the Solstice.
In Northern Europe, the ancient Germanic people tied fruit and attached candles to evergreen tree branches, in honor of their god Woden. Trees were viewed as symbolizing eternal life. This is the deity after which Wednesday (Wodensday) was named. The trees joined holly, mistletoe, the wassail bowl and the Yule log as symbols of the season. All predated Christianity.
Christmas traditions:
One Christmas tradition was that St. Boniface (675? - 755 CE; a.k.a. Winfred) cut down a deciduous tree in the presence of some newly-baptized Christians. The tree was an oak -- once sacred to the formerPagans. It miraculously split into four pieces, revealing an evergreen tree growing from the center of the oak stump. This was interpreted as symbolizing the death of Paganism and the establishment of Christianity.
Another is that Martin Luther (1483 - 1546) was so impressed by a forest scene that he allegedly cut down a small fir tree, took it home, and decorated it with lighted candles. This is probably a myth, because the earliest documented record of a Christmas tree in Germany is dated to almost 60 years after his death.
History of the Christmas Tree: The modern Christmas tree tradition dates back to Western Germany in the 16th century. They were called "Paradeisbaum" (paradise trees) and were brought into homes to celebrate the annual Feast of Adam and Eve on DEC-24. They were first brought to America by German immigrants about the year 1700. Christmas trees became popular among the general U.S. population about 1850.
President Franklin Pierce (1804-1869) arranged to have the first Christmas tree in the White House, during the mid-1850's. President Calvin Coolidge (1885-1933) started the National Christmas Tree Lighting Ceremony on the White House lawn in 1923.
Today, the Christmas Tree has become accepted by most Christians, by people of other faiths, and for those who do not follow an organized religion. It has become a popular late-December tradition and part of our present-day culture. Christmas Trees grace households and office buildings alike.
The trees take on a variety of shapes, sizes, and costs. Both the Christian and secular worlds have embraced traditional green firs, beautiful white flocked trees, and even pre-lit Christmas trees for those who have allergic reactions to live trees.
As Gail Quick, University of South Carolina - Beaufort's Dean of University Relations, commented on the occasion of a community tree-lighting ceremony.
"This Christmas event every year is the glue that holds this community together - this and the July 4th fireworks. This always makes me feel good. Some of us still believe in Santa Claus."
Many Pagan cultures used to cut boughs of evergreen trees in December, move them into the home or temple, and decorate them. Modern-day Pagans still do. This was to recognize the winter solstice -- the time of the year that had the shortest daylight hours, and longest night of the year. This occurs annually sometime between DEC-20 to 23; most often, it is DEC-21. As the solstice approached, they noticed that the days were gradually getting shorter; many feared that the sun would eventually disappear forever, and everyone would freeze in the dark. But, even though deciduous trees, bushes, and crops died or hibernated for the winter, the evergreen trees remained green. They seemed to have magical powers that enabled them to withstand the rigors of winter.
Not having evergreen trees, the ancient Egyptians considered the palm tree to symbolize resurrection. They decorated their homes with its branches during the winter solstice.
"The first decorating of an evergreen tree began with the heathen Greeks and their worship of their god Adonia, who allegedly was brought back to life by the serpent Aessulapius after having been slain."
The ancient Pagan Romans decorated their "trees with bits of metal and replicas of their god, Bacchus [a fertility god]. They also placed 12 candles on the tree in honor of their sun god" Their mid-winter festival of Saturnalia started on DEC-17 and often lasted until a few days after the Solstice.
In Northern Europe, the ancient Germanic people tied fruit and attached candles to evergreen tree branches, in honor of their god Woden. Trees were viewed as symbolizing eternal life. This is the deity after which Wednesday (Wodensday) was named. The trees joined holly, mistletoe, the wassail bowl and the Yule log as symbols of the season. All predated Christianity.
Christmas traditions:
One Christmas tradition was that St. Boniface (675? - 755 CE; a.k.a. Winfred) cut down a deciduous tree in the presence of some newly-baptized Christians. The tree was an oak -- once sacred to the formerPagans. It miraculously split into four pieces, revealing an evergreen tree growing from the center of the oak stump. This was interpreted as symbolizing the death of Paganism and the establishment of Christianity.
Another is that Martin Luther (1483 - 1546) was so impressed by a forest scene that he allegedly cut down a small fir tree, took it home, and decorated it with lighted candles. This is probably a myth, because the earliest documented record of a Christmas tree in Germany is dated to almost 60 years after his death.
History of the Christmas Tree: The modern Christmas tree tradition dates back to Western Germany in the 16th century. They were called "Paradeisbaum" (paradise trees) and were brought into homes to celebrate the annual Feast of Adam and Eve on DEC-24. They were first brought to America by German immigrants about the year 1700. Christmas trees became popular among the general U.S. population about 1850.
President Franklin Pierce (1804-1869) arranged to have the first Christmas tree in the White House, during the mid-1850's. President Calvin Coolidge (1885-1933) started the National Christmas Tree Lighting Ceremony on the White House lawn in 1923.
Today, the Christmas Tree has become accepted by most Christians, by people of other faiths, and for those who do not follow an organized religion. It has become a popular late-December tradition and part of our present-day culture. Christmas Trees grace households and office buildings alike.
The trees take on a variety of shapes, sizes, and costs. Both the Christian and secular worlds have embraced traditional green firs, beautiful white flocked trees, and even pre-lit Christmas trees for those who have allergic reactions to live trees.
As Gail Quick, University of South Carolina - Beaufort's Dean of University Relations, commented on the occasion of a community tree-lighting ceremony.
"This Christmas event every year is the glue that holds this community together - this and the July 4th fireworks. This always makes me feel good. Some of us still believe in Santa Claus."