Retired astronaut Scott Kelly (pictured) spent a total of 520 days on the space station, with his longest mission lasting 340 days from from March 27, 2015 to March 1, 2016.

In his new YouTube video, Mark Rober, 40, sprinkled Glo Germ powder on a third-grade teacher and one of her students to show how germs can spread.

Adult human stem cells have been sent to the International Space Station (ISS) this week to explore how low gravity affects the growth of human tissue.

Appearing on GMB via video link from his home in Houston, Scott Kelly - who spent 520 days on the International Space Station - said that routine is essential while families are on lockdown.

It will be the first manned X-plane produced by NASA in two decades and is designed to help develop standards for future all-electric aircraft.

NASA analyzing data from the Voyager 2's 1986 visit to Uranus and found the magnetic bubble surrounding the planet is allowing bits of its atmosphere to leak into space.

NASA has announced a new research mission that will send small satellites into orbit to study solar particle storms, which can cause geomagnetic storms on Earth and disrupt the electrical grid.

Researchers for the Polytechnic University of Cartagena, Spain, found the urea in urine could be mixed with lunar soil to create a flexible and sustainable 3D printed concrete.

Researchers from the University of Tokyo discovered the single-celled organisms after spending a decade studying rocks found in the South Pacific Ocean in 2010.

In an unprecedented step, NASA tested a giant 21-foot mirror on its James Webb space telescope that is designed to observe a range of frequencies not currently seen by Hubble.

NASA astronauts showed off the ISS crew's workout equipment that includes a vacuum system similar to free-weights, a treadmill and a stationary bike without a seat or handlebars.

Summer Worden is accused of falsely filing complaints against astronaut Anne McClain on two occasions, according to federal authorities.

Air pollution over the northeast region of the US declined by 30 percent last month compared to March 2019, as millions in the area are forced into lockdown to limit the spread of the coronavirus.

Some conspiracy theorists who believe that 5G is helping to spread the coronavirus, have taken to burning 5G communication towers (pictured). This theory has been spread by a bizarre group.

ESA released satellite images Venice from this month and the same time last year to highlight a distinct lack of boat traffic following the lockdown in March to limit the spread of coronavirus.

Former NASA astronaut Steven Smith, 61, from Arizona, told a new BBC2 documentary that he wrote his family members letters before every mission, telling them he wanted NASA's work to continue.

Tiny 'nanocardboard' aircraft that are powered by light and inspired by corrugated paper cardboard could help NASA collect samples on Mars and discover more of the red planet.

NASA showcased new devices at the White House that will help in the fight against the coronavirus. The project includes a pressure helmet, decontamination system and a ventilator.

Actor Tom Cruise and Elon Musk's SpaceX are working on a project with NASA to shoot an action film in outer space. The movie would be the first narrative feature film to be shot in outer space.

The controversial facial recognition company Clearview AI is in negotiations with several unnamed federal agencies and three US states to provide contact tracing services during.

Climate change will make life even harder for agriculture workers in the coming decades, with nearly double the number of days when it will be too hot to safely work outdoors.

Researchers studying a web browser loaded into the company's phones found that it was tracking nearly all of a users' web behavior including visited websites and search queries in Google.

Anne Carter, a canine scientist at Nottingham Trent University and co-author of the study, wants dogs to be trained to walk on a loose lead or in a harness to prevent choking.

The feature is planned for the US, but 'similar markets' will also see the feature introduced, it is believed. Exact timings and locations for its roll-out have not been revealed.

A study from Dutch researchers found chest pain, sweating and shortness of breath are the main three symptoms of a heart attack

The hugely influential British artist partnered with snap to allow people to create their own virtual versions of his world-renowned Spin paintings.

Apple's highly anticipated 13-in MacBook has been announced. The new device features a Magic Keyboard, powerful 10th-generation Intel processor and double the storage of its predecessor.

British homes in lockdown are using 41 hours of internet a week, or nearly six hours a day - a rise of 29 per cent, according to a new survey from price comparison site Uswitch.

The International Fact-Checkers Network (IFCN) said it will launch a bot on the popular messaging service WhatsApp that allows users to query terms like 'masks' or 'coronavirus symptoms.'

As reported by The Verge , the tech companies have provided samples of what eventual app interface systems could look like though they won't be developing the apps themselves.

Life for crabeater seals in the Antarctic could get even more difficult in the coming years, as climate change and commercial fishing make krill, their main food source, more scarce.

American company Indoor Biotechnologies have used a gene editing tool to eliminate the production of the protein in cats which causes some people to suffer allergic reactions.

Eta Aquariids are created from the debris left behind by Halley's Comet and happen every year from the middle of April until the end of May.

Russian scientists suggest the mysterious 'Tunguska event' explosion of 1908 was caused by an iron asteroid that entered the Earth's atmosphere and then bounced back into space.

This meteor shower is best viewed in the southern hemisphere, but should be visible from most places on Earth, weather permitting.

Wolverhampton is the first in the country to approve a trial of an AI-powered system that will manipulate red and green lights to restrict function to air pollution hotspots.

O2's mobile network has been suffering from an outage that left thousands of customers across the UK unable to make or receive calls for around two hours.

Demand for takeaway food has risen as a result of lockdown - and the hoax sites are the latest example of UK criminals trying to take advantage of the COVID-19 crisis.

Apple revealed in March that its Worldwide Developers Conference would be hosted online, but has announced the official date - June 22. The event will be free to the public this year.

The Mayor of Houston has announced a plan to move the city to 100 percent renewable energy sources starting in July, a change that's expected to save the city $65million over the next seven years.

The move to remove re-blogged content containing hate speech marks an escalation in Tumblr's efforts to clean its platform. Previously only original posts were removed while re-blogs remained active.

According to the social platform, it is conducting a test for users on iOS that will use its AI to scan replies before they're posted and give users a chance to re-think or revise them.

Virgin Galactic, says the Space Act Agreement is designed to 'advance the United States' efforts to produce technically feasible, high Mach vehicles for potential civil application.'

Older adults who consume only a small amount of these foods are two to four times more likely to develop Alzheimer's and related conditions over 20 years, US researchers found.

TInder made its biggest announcement since launching in 2012 - it is adding video chatting to the app. The feature aims to help millions of users date virtually while under coronavirus lockdown.

Yoga is a mental and spiritual practice which originated in ancient India. It involves breathing techniques, exercise and meditation.

The creator of one of the world's first global computer viruses says he regrets his creation. Called the Love Bug, or ILOVEYOU, the virus initially spread through email in May 2000.

New DNA testing has revealed that a prized variety of grapes called petit manseng, used to make a number of popular Australian wines, have actually been mislabeled for decades.

Scientists have developed an environmentally friendly plasma-powered jet engine that needs just air and electricity to propel itself forward rather than fossil fuels.

A damning study found global warming is driving temperatures and humidity to levels exceeding what the human body can deal with.