Never miss a story

Get subscribed to our newsletter


×
The Changing seasons of the Earth has been captured by NASA. Wikimedia.

NASA captured 20 years of changing seasons on Earth in a striking new global map of the home planet.

The data visualization, released this week, shows Earth’s fluctuations as seen from space.


The polar ice caps and snow cover are shown ebbing and flowing with the seasons. The varying ocean shades of blue, green, red and purple depict the abundance — or lack — of undersea life.

“It’s like watching the Earth breathe. It’s really remarkable,” said NASA oceanographer Jeremy Werdell, who took part in the project.

Two decades — from September 1997 to this past September — are crunched into 2½ minutes of viewing.

Werdell finds the imagery mesmerizing. “It’s like all of my senses are being transported into space, and then you can compress time and rewind it, and just continually watch this kind of visualization,” he said Friday.

Werdell said the visualization shows spring coming earlier and autumn lasting longer in the Northern Hemisphere. Also noticeable to him is the receding of the Arctic ice caps over time — and, though less obvious, the Antarctic, too.

On the sea side, Werdell was struck by “this hugely productive bloom of biology” that exploded in the Pacific along the equator from 1997 to 1998 — when a water-warming El Nino merged into cooling La Nina. This algae bloom is evident by a line of bright green.

In considerably smaller Lake Erie, more and more contaminating algae blooms are apparent — appearing red and yellow.

All this data can provide resources for policymakers as well as commercial fishermen and many others, according to Werdell.

Programmer Alex Kekesi of NASA’s Goddard Space Flight Center in Maryland said it took three months to complete the visualization, using satellite imagery.

Just like our Earth, the visualization will continually change, officials said, as computer systems improve, new remote-sensing satellites are launched and more observations are made. (VOA)


Popular

Photo by Leon on Unsplash

For those who don't align with the traditional work culture, believe in doing something revolutionary, aim to pursue their passion, and wish to make an impact, learning an offbeat skill could be exciting and rewarding. Here are a few more reasons that would add up to your decision of learning an offbeat skill.

By- Sunidhi Beeliya

Unconventional career choices might be challenging at first, however, the benefits associated with these are promising. Today's job opportunities are the ones that didn't exist a few years ago. Similarly, the pace of technological evolution would continue to generate millions of new jobs in the future that we can't think of today. Equipping oneself with relevant, unique, evolving, and out-of-the-box skills, is thus, an important aspect for young graduates aiming to start their own business or land a secure job. As parents, education institutions, and the government are now motivating the youngsters to walk an extra mile, think of new ideas, and explore new career routes, students have gathered the confidence and courage to pursue their interests. For those who don't align with the traditional work culture, believe in doing something revolutionary, aim to pursue their passion, and wish to make an impact, learning an offbeat skill could be exciting and rewarding. Here are a few more reasons that would add up to your decision of learning an offbeat skill.

Keep Reading Show less
Photo by Corinne Kutz on Unsplash

Blogging helps drive traffic, promotes your content and offerings, and helps to instill trust among your target audience

By- Sunidhi Beeliya

Blogging has lately become a popular tool for building a positive online influence through legible content. As many young graduates are plunging on the startup bandwagon, it's evident that becoming an entrepreneur excites them more than choosing to work for someone else. The enormous inspiring stories of various multi-million businesses that started off as a blog initially, add up to their ambitions. Blogging helps drive traffic, promotes your content and offerings, and helps to instill trust among your target audience. Moreover, blogging is one of the most economical and effective ways to start sharing your ideas with people. Although good content writing skills are essential for starting your own blog, knowledge of marketing your content to the right audience is what helps you turn it into a business. So, if you are a budding blogger and are willing to increase your reach, here are a few marketing tips that would not let your blogging efforts go in vain!

Keep Reading Show less
VOA

President Joe Biden listens to Vice President Kamala Harris speak in the Rose Garden of the White House, in Washington, Aug. 5, 2021

U.S. Vice President Kamala Harris said final congressional passage of the Biden administration's major infrastructure plan comes down to "a fundamental issue" of the lack of water brought on by climate change.

Harris made the comments Monday during a visit to Lake Mead, a man-made reservoir near the gambling and tourist destination city of Las Vegas, Nevada, which provides drinking water and electricity for more than 40 million people across seven western U.S. states and northern Mexico.

Keep reading... Show less