The Video of Coronal Hole on the Sun
This imagery of the sun captured by NASA's Solar Dynamics Observatory from May 17-19, 2016, shows a giant dark area on the star's upper half, known as a coronal hole. Coronal holes are low-density regions of the sun’s atmosphere, known as the corona. Because they contain little solar material, they have lower temperatures and thus appear much darker than their surroundings. Coronal holes are visible in certain types of extreme ultraviolet light, which is typically invisible to our eyes, but is colorized here in purple for easy viewing, the official website of NASA informs.
Coronal holes are the source of a high-speed wind of solar particles that streams off the sun some three times faster than the slower wind elsewhere. While it’s unclear what causes coronal holes, they correlate to areas on the sun where magnetic fields soar up and away, without looping back down to the surface, as they do elsewhere.
-
17:08
The regular session of the Anti-corruption Policy Council takes place in Jermuk
-
15:05
The Prime Minister sends congratulatory messages to the supreme leader of Iran and the President of Iran
-
11:11
Armenia sends earthquake aid to Turkey
-
10:43
Commemoration of the Pontiff St. Sahak Partev
-
09:16
Some roads are closed and difficult to pass in Armenia
-
19:55
Phone conversation of the Foreign Minister of Armenia with the U.S. Assistant Secretary of State for European and Eurasian Affairs
-
18:30
Prime Minister Pashinyan and President Khachaturyan meet
-
18:20
Ararat Mirzoyan with Co-Chairman of the OSCE Minsk Group of France Brice Roquefeuil
-
17:01
Humans could land on Mars within 10 years, Musk predicts
-
16:45
France, US urge 'immediate' end to Nagorno Karabakh blockade
-
16:01
Blockaded Nagorno Karabakh launches fundraiser to support quake-hit Syria
-
15:59
Earthquake death toll in Turkey rises to 18,342
-
15:43
Ararat Mirzoyan Held a Telephone Conversation with Sergey Lavrov
-
15:06
French president rules out fighter jet supplies to Ukraine in near future
-
14:47
5 Day Weather Forecast in Armenia
-
14:44
President Vahagn Khachaturyan wrote a note in the book of condolences opened in the Embassy of Syria in Armenia
-
14:20
Azerbaijan’s provocations impede establishment of peace and stability – Armenian FM tells Russian Co-Chair of OSCE MG
-
12:57
France representation to OSCE: Paris calls on Azerbaijan to restore freedom of movement through Lachin corridor
-
11:40
Command of Kosovo forces highly appreciated preparation of Armenian peacekeepers
-
10:16
The United States withdrew from sanctions against Syria for six months the provision of assistance after the earthquake
day
week
month
Humidity: 51%
Wind: 2.57 km/h