The snow in the Antarctic peninsula is turning green due to the blooming algae which are likely to spread as temperatures increase due to climate change, researchers have said. In some parts, the microscopic organisms have grown so dense that they turn the snow bright green and can even be seen from space, a study published on Wednesday in the journal Nature Communications said.
Scientists have also created the first large-scale map of the microscopic algae using data collected over two years by the European Space Agency’s Sentinel 2 satellite, along with on-the-ground observations, a research team from the University of Cambridge and the British Antarctic Survey.
This new mapping found 1,679 separate algal blooms, a key component in Antarctica’s ability to capture carbon dioxide from the atmosphere. The large scale map will be used to assess the speed at which the continent is turning green due to climate change.
Researchers believe the microorganisms will expand as global temperatures increase due to climate change. They can also create a potential source of nutrition for other species.
“We now have a baseline of where the algal blooms are and we can see whether the blooms will start increasing as the models suggest in the future,” Matt Davey of the University of Cambridge’s Department of Plant Sciences told Reuters.
“The algal blooms in Antarctica are equivalent to about the amount of carbon that’s being omitted by 875,000 average UK petrol car journeys. That seems a lot but in terms of the global carbon budget, it’s insignificant,” Davey added.
Davey added that while the algal blooms take up carbon from the atmosphere, it won’t make any “serious dent” in the amount of carbon dioxide put in the atmosphere at present.
Dr Andrew Gray, lead author of the paper, and a researcher at the University of Cambridge said that the blooms could also lead to further snowmelt.
“It’s very dark — a green snow algal bloom will reflect about 45 per cent of light hitting it whereas fresh snow will reflect about 80% of the light hitting it, so it will increase the rate of snowmelt in a localized area,” he told CNN.
‘Strawberry Moon’ to rise with a special eclipse for some skywatchers – Globalnews.ca
The phenomenon, known as a penumbral lunar eclipse, occurs when the Earth comes between the sun and the moon, thereby casting a faint shadow on the moon. This penumbral lunar eclipse will make the full moon look slightly darker on part of its surface, although only some portions of the world will see it.
The penumbral lunar eclipse will only be visible from parts of Australia, Asia, Africa, Europe and South America, according to NASA’s charts.
In other words, North Americans will need to watch a livestream on the internet to catch a glimpse of the event, which starts at 3 p.m. EDT. Nevertheless, the so-called “Strawberry Moon” will be visible to everyone.
That name comes from the time of year and not the expected colour of the moon. There are farm-related nicknames for the first full moon of every month, and the strawberry nickname originated from the Algonquin First Nation, according to the Old Farmer’s Almanac. The first full moon of June often coincided with the harvest season for wild strawberries in North America, the Almanac says.
Although skywatchers in Canada and the U.S. will miss out on this penumbral lunar eclipse, they’ll only have to wait a month to catch the next one. Another penumbral lunar eclipse is slated to happen on July 5, and that one should be visible from North America. The darkest penumbral lunar eclipse of the year is expected on Nov. 30.
A penumbral lunar eclipse also happened on Jan. 10, coinciding with that month’s “Wolf Moon.”
Timelapse captures moment sky darkens for total solar eclipse
Not to throw shade at the penumbral lunar eclipses, but they’ll likely pale in comparison to the annular solar eclipse predicted for June 21. That’s when the moon will pass between the Earth and the sun, making the sun look like a ring of fire for viewers in parts of Africa, China, northern India and Pakistan, according to TimeandDate.com.
Again, it won’t be visible from North America — but you’ll still be able to watch the whole thing online without risking eye damage from staring at the sun.
© 2020 Global News, a division of Corus Entertainment Inc.
In Space No One Can Hear You Campaign: Trump Team Pulls Ad – NDTV
President Donald Trump’s re-election campaign has pulled a video featuring the SpaceX launch and astronauts which appeared to violate NASA’s media regulations, reports said.
The “Make Space Great Again” YouTube ad posted on YouTube showed footage from the Apollo program, as well as video of the landmark SpaceX Demo-2 mission and NASA astronauts Bob Behnken and Doug Hurley, the SpaceNews.com website said.
YouTube shows the video was removed by the uploader.
NASA generally allows use of its images and video but prohibits the use of its insignia and photographs of its astronauts in advertisements.
“As a government agency, NASA will not promote or endorse or appear to promote or endorse a commercial product, service or activity. Therefore, there are strict limits placed on the use of any of the NASA identities and emblem imagery in advertisements,” the space agency’s advertising regulations say.
“Astronauts or employees who are currently employed by NASA cannot have their names, likenesses or other personality traits displayed in any advertisements or marketing material.”
Hurley’s wife Karen Nyberg, a retired astronaut, and their young son were also reportedly shown in the clip.
“I find it disturbing that a video image of me and my son is being used in political propaganda without my knowledge or consent. That is wrong,” Nyberg tweeted.
A Change.org petition to “Stop Donald Trump politicizing SpaceX and NASA accomplishments” has attracted more than 6,000 signatures so far.
The New York Times described the video as “the latest effort by the president to parlay his stewardship of American space policy into an upbeat campaign issue.”
The SpaceX mission, which blasted off from Florida’s Kennedy Space Center on May 30, was the first crewed US spacecraft in nearly a decade.
Trump, who witnessed the liftoff, has relaunched the race to re-conquer the Moon and to journey onwards to the Red Planet.
But the deadlines — 2024 and 2033 respectively — appear unrealistic and have caused turbulence within the space agency.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
Donald Trumps campaign team pulls ad featuring NASA astronauts after backlash – Republic World – Republic World
US President Donald Trump’s re-election campaign pulled a video featuring the historic Dragon Crew launch after backlash from astronauts and NASA officials. Trump has been trying to project the success of NASA and SpaceX as an achievement of his administration and the latest video appeared to be in violation of the space agency’s policy.
Advertisement video posted on YouTube reportedly showed the footage of the Apollo program, and the Demo-2 mission, which resurrected the human spaceflight capability of the United States. NASA prohibits the use of any of the NASA identities and emblem imagery in advertisements. NASA’s advertising regulations say that the space agency will not promote or endorse or appear to promote or endorse a commercial product, service or activity.
“Astronauts or employees who are currently employed by NASA cannot have their names, likenesses or other personality traits displayed in any advertisements or marketing material,” the regulations read.
Retired NASA astronaut Karen Nyberg, the wife of Doug Hurley who flew in the Dragon Crew spacecraft along with Bob Behnken, raised strong objection to the used of her photograph in the advertisement. Taking to Twitter, Nyberg said that she finds it “disturbing” that the video image was used without her consent.
A Change.org petition was initiated to stop Trump from politicising accomplishments of SpaceX and NASA and has attracted nearly 7,000 signatures so far. The petition argued that the NASA Commercial Crew Program has been around in its current form since the Obama Administration, and its roots go back to the Bush Administration.
It said that NASA and the space industry as a whole have long tried to stay out of politics, and, until this Administration, that goal was at least partially attained. The petition further added that implying any one person was responsible for the SpaceX-NASA Crew Demo-2 launch is an “insult to the work of the teams” that meaningfully contributed to its success.
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