Voyager 2, for example, has observed two massive storms forming up on Neptune in 1989, while NASA'sHubble Space Telescope, which is has been following Neptune from time to time since 1993, also spotted three such hurricanes similar to the recently observed mysterious dark vortex on Neptune.
Hubble is the only telescope now that has the blue light sensitivity to capture these storms in Neptune's atmosphere, which appear and disappear very quickly, in astronomical terms. The storm is accompanied by white "companion clouds" that form when the ambient gas ahead of the storm is forced upward and over the vortex.
NASA said: "Near the edge of the polar storm is a large, compact methane-ice cloud, which is sometimes bright enough to be photographed by amateur astronomers". They are similar to clouds that appear as pancake-shaped features when air is pushed over mountains on Earth.
The causes of these dark spots is a mystery, but because they're only seen at the bluest wavelengths, "my money is on some sort of coloration of the clouds", said Irwin.
Patrick Irwin, a planetary scientist at Oxford University, said the phenomenon is not a storm, as NASA described it in its release.
The Big Red Spot, the gargantuan storm about twice the diameter of Earth that swirls through the atmospheric band of Jupiter 22 degrees south of its the equator, has been observed since the late 1800s. Since the Hubble started tracking the storms, increased cloud activity has been a regular precursor to their appearance.
With the planet now reaching the middle of its summer and the polar cap storm seeming to become more prominent, experts think the changes may result from this seasonal shift which influences movements in the atmosphere. The giant is sporting a wide white spot across its north pole.
A "bright stormy cloud cap" was seen hovering over the seventh planet from the Sun.
The white cap is most likely the result of the planet's unique rotation - unlike every other planet in the system, Uranus has chose to rotate counterclockwise.
The agency added: "Just as meteorologists can not predict the weather on Earth by studying a few snapshots, astronomers can not track atmospheric trends on solar system planets without regularly repeated observations". The likely cause of this feature has to do with the planet's unique tilt, which causes sunlight to shine directly onto the north polar regions for an extended period of time during the summer.
Because of the distance at which Uranus orbits the Sun, the planet's years are a lot different than we experience here on Earth. But as time progressed, a reflective band-whitish against Uranus' blue hues-began to appear encircling the north pole.
The British central bank leaves the main interest rate unchanged at 0.75 percent, as generally expected in the financial markets. The pound has been supported in 2019 by a growing belief that a last-minute agreement will avert a no-deal Brexit.
The man, Christopher Ryan Larson, of Trinity, was arrested on Tuesday, the day before he turned 34, according to jail records. The deputy asks Larson if he is 'complete with the exercise, ' but he just mumbles and continues his shuffle.
Les premiers benchmarks sont tombés pour la Radeon VII et la nouvelle carte graphique d'AMD ne fait pas exactement l'unanimité. Un an et demi après la Radeon RX Vega 64 , AMD décline son architecture GPU Vega sur le procédé de gravure en 7 nm de TSMC.
Earl Blumenauer, Oregon Democrat, repeating efforts unsuccessfully mounted by the lawmakers during the last Congress. The new bill aims to legalize, tax, and "responsibly regulate" marijuana consumption just like alcohol.
Il a expliqué à la police vouloir également atteindre le drone employé par les forces de l'ordre durant leurs interventions. Présent depuis plusieurs semaines dans les rassemblements, il visait tout particulièrement les vitres de la préfecture.
Pour l'instant, c'est le terrain qui m'attire le plus, et je pense que j'ai encore quelque chose à y faire. Depuis le tirage au sort, les choses se sont un peu équilibrées, cela reste deux très grands clubs.
He knows he can expect a similar atmosphere because thousands of his British fans would likely make the trip to NY for the fight. The 30-year-old has won 11 of his last 12 bouts by knockout, including a fourth-round KO of Bogdan Dinu in November.
May will ask lawmakers on Thursday to reaffirm that they support her bid to renegotiate the backstop, a government source said. May will promise parliament another vote on other Brexit options if a deal is still not ready by the end of February .
La firme spatiale d'Elon Musk , Space X va lancer un nouveau vaisseau spatial pour le compte de la NASA le 2 mars prochain. C'est ça troisième mois d'affilée La NASA a annoncé un autre retard pour le premier vol d'essai important de Crew Dragon .
Indians' Lindor (calf) out two months
The Indians said Lindor was evaluated Wednesday at the Cleveland Clinic , where a doctor confirmed a moderate calf strain. Even if it's for a week or two, the Tribe can't afford to have Lindor out of their lineup this season.
Hailey Baldwin finally reveals how Justin Bieber proposed
She also found herself the target of Bieber's fans, and many people on social media were also not optimistic about their marriage. He added: "I've been successful since I was 13, so I didn't really have a chance to find who I was apart from what I did".
Automakers recall 1.7 million cars with fatal airbags
The recalls forced Takata Corp.to seek bankruptcy protection and sell most of its assets to pay for the fixes. Daimler's van division, Tesla , and Ferrari recalled 159,689, 68,763, and 11,176 cars, respectively.
Sierra Leone declares rape a national emergency
Mr Bio said attacks on minors - which account for a third of all cases - would be punished with a life sentence. The views expressed therein are not necessarily those of stlucianewsonline.com, its sponsors or advertisers.
Thomas Cook considers airline sale as losses hit £60m
Thomas Cook said it has launched a strategic review of the airline business, suggesting this could lead to possible disposal. This has involved a continuous review of our cost structure in order to stay competitive in a highly fragmented market.
FDA reports additional cases of cancer linked to breast implants
After discussing the risk with French authorities, the FDA moved forward with its own warning on cancer risk from breast implants. The textured implants have become increasingly popular because women don't have to worry about getting the implant re-positioned.