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Why is the Sun's corona so much hotter than the Sun's surface? Why is the magnetic reconnection effect many orders of magnitude faster than predicted by standard models? Space weather prediction: How does the Sun produce strong southward-pointing magnetic fields in solar coronal mass ejections that lead to geomagnetic storms?
Unanswered Questions: 그것이 알고 싶다 (1992–1995, 1996–present) 1993–present Open TV The Viewers' World 열린 TV 시청자 세상 1998–present What on Earth! 순간포착 세상에 이런일이 2001–present Animal Farm TV 동물농장 Water is Life 물은 생명이다 2003–present
Several unanswered questions remain, including whether Earth was a full "snowball" or a "slushball" with a thin equatorial band of open (or seasonally open) water. The Snowball Earth episodes are proposed to have occurred before the sudden radiations of multicellular bioforms known as the Avalon and Cambrian explosions ; the most recent ...
The Earth will be hit by a tiny asteroid today, astronomers have said. But the tiny asteroid – which is roughly one metre in size – will burn up in the atmosphere as it arrives. That means it ...
The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.
Sun-Earth Day is a joint educational program established in 2000 by NASA and ESA. The goal of the program is to popularize the knowledge about the Sun, and the way it influences life on Earth, among students and the public. [1] The day itself is mainly celebrated in the United States near the time of the spring equinox. However, the Sun-Earth ...
Helioseismology has contributed to a number of scientific breakthroughs. The most notable was to show that the anomaly in the predicted neutrino flux from the Sun could not be caused by flaws in stellar models and must instead be a problem of particle physics. The so-called solar neutrino problem was ultimately resolved by neutrino oscillations.
Earth Day is on April 22, but really, it should be every day—saving the planet should be a daily occurrence! From conservation to wildlife to politics, test your environmental and historical ...