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Sunday, December 05, 2021
Parag Agrawal, Parag Agrawal news, Twitter, twitter ceo, Chief Executive Officer, Indian Express, India news, current affairs, Indian Express News Service, Express News Service, Express News, Indian Express India News

Trending: #Parag Agrawal

December 5, 2021 2:14:09 pm

🔴 The new CEO of Twitter takes over at a time when the social media platform is negotiating the free-speech line with governments around the world, including in India. The Sunday Express traces Parag Agrawal’s journey from IIT Bombay to Stanford University to Silicon Valley and finally, Twitter. Jayprakash S Naidu & Ravish Tiwari

Solar eclipse 2021 on December 4: Meet the man behind the Facebook group that connects eclipse chasers

December 4, 2021 2:56:27 pm

🔴As the world tunes in to watch the last solar eclipse of 2021, we catch up via email with the man working behind the scenes of Facebook's 'Solar Eclipse Chasers' group.

Total_Solar_Eclipse

Don’t miss the last Solar Eclipse of 2021 today: Where to watch, live streaming, timings, visibility in India

December 4, 2021 1:55:58 pm

Weather permitting, a view of the total solar eclipse from Union Glacier, Antarctica, will be streamed on NASA’s YouTube channel and on nasa.gov/live.

Human_blastoid

Scientists use stem cells to create models of pre-embryos

December 3, 2021 6:50:17 pm

The study showed blastoids reliably replicated key phases of early embryo development.

GJ 367b

Hot little planet as dense as iron zips around red dwarf star

December 3, 2021 5:31:24 pm

GJ 367b orbits its star once every 7.7 hours, placing it in a category of "ultra-short period" exoplanets that travel around their home stars in less than 24 hours.

River flow

How are our rivers moving over time? Global database documents 40 years of change

December 3, 2021 5:01:12 pm

The Ganges river delta is a good example of a system where a combination of migration-enhancing and migration-dampening factors balance each other out.

Atlantic puffin

Heat, no food, deadly weather: Climate change kills seabirds

December 3, 2021 12:38:43 pm

One of the most visible examples of global warming’s seabird toll was the die-off of tens of thousands of common murres along the West Coast in the mid-2010s.

Nanoracks-Starlab

Work and play in space? NASA awards $415.6 million for new space hubs

December 3, 2021 12:06:50 pm

The trio of awards are emblematic of the US space agency's efforts to tap private companies to enable an American-led commercial economy in low-Earth orbit.

Solar Eclipse

Last solar eclipse of 2021 today: How to capture the celestial event

December 4, 2021 1:55:46 pm

Ajay Talwar, an astrophotographer and Vice President of the Amateur Astronomers Association Delhi shares his tips on how to capture a total solar eclipse.

hot star exoplanet

One year on this exoplanet is just 16 hours long

December 2, 2021 4:54:17 pm

As the exoplanet is extremely close to its star, the day side temperature could reach up to 3,500 Kelvin, or close to 3300 degrees Celsius.

Fossilized footprints

Tanzania footprints offer clues on origin of human upright walking

December 2, 2021 3:49:39 pm

The study determined that the various Laetoli tracks were created by two different hominin species.

Stegouros elengassen

This dinosaur found in Chile had a battle ax for a tail

December 2, 2021 1:56:03 pm

The animal, which they named Stegouros elengassen, offers new clues about where these tank-like dinosaurs came from — and features a bizarre, bony tail shaped like a club that was wielded by Aztec warriors.

Space walk

After delay, NASA astronauts set for spacewalk to replace faulty space station antenna

December 2, 2021 1:19:43 pm

An anti-satellite missile test conducted without warning by Russia generated a debris field in low-Earth orbit, forcing the seven ISS crew members to take shelter in their docked spaceships.

An aerial view shows dead palm trees on the beach near the Salton Sea

‘So many dimensions’: A drought study underlines the complexity of climate

December 2, 2021 12:13:18 pm

Environmental degradation has exacerbated the drought’s effects. Sandstorms fueled by deforestation have ruined cropland and pastures. An outbreak of locusts threatens further destruction.

Stajnia pendant

This 41,500-year-old pendant could be Eurasia’s oldest piece of jewellery

December 1, 2021 4:25:01 pm

The ornament was found at the Stajnia Cave in Poland and radiocarbon dating revealed its age.

VeCare bandage

Singapore tests out ‘smart bandage’ for remote recovery

December 1, 2021 1:20:42 pm

The bandage is being tested on patients with chronic venous ulcers, or leg ulcers caused by circulation problems in veins.

fungal network

World’s underground fungal life to be mapped for first time

December 1, 2021 12:53:31 pm

The world-first map will be used to identify sites with the potential to store more CO2, and withstand changes brought about by global heating.

Researchers extracting a sediment core from the seafloor of Kongsfjorden, a fjord at the far eastern end of the Fram Strait between the Norwegian archipelago of Svalbard and Greenland. (Sara Giansiracusa via The New York Times)

This ocean invaded its neighbour earlier than anyone thought

December 1, 2021 12:41:06 pm

A process called Atlantification is part of the reason the Arctic is warming faster than any other ocean.

solar eclipse

‘A night darker than the darkest nights’: Experiences of an eclipse chaser

December 3, 2021 10:22:56 am

On December 4, a total solar eclipse will be visible from Antarctica. The southern tip of South America, Africa, Australia, and New Zealand can also see partial phases of the eclipse. It will not be visible from India.

Missouri Dinosaur

Duck-billed dinosaur may be one of many at Missouri site

November 30, 2021 3:35:50 pm

Beyond dinosaur bones, the teams have found remains of massive turtles, prehistoric fish, even crocodiles that may have been to up 15 meters long

Space walk

Citing debris risk, NASA delays spacewalk to fix space station antenna

November 30, 2021 2:19:14 pm

The outing would be the fifth spacewalk for Marshburn and the first for Barron on her debut spaceflight for NASA.

Pyronema and moss

This fire-loving fungus eats charcoal, if it must

November 29, 2021 6:55:09 pm

If this fungus is breaking down charcoal after a fire, then that could help open up a food source for the next generation of microbes that can’t eat charcoal, making Pyronema an important player in post-fire recovery.

mummy Peru

Archaeologists find 800-year-old mummy in Peru

November 29, 2021 9:17:22 pm

In the tomb were also offerings including ceramics, vegetable remains and stone tools.

Climate Change Super Spuds

Researchers try producing potato resistant to climate change

November 29, 2021 3:38:36 pm

A NASA study published this month suggested climate change may affect the production of corn and wheat as soon as 2030 under a high greenhouse gas emissions scenario.

Mars picture

NASA’s Curiosity rover sends ‘picture postcard’ from Mars

November 29, 2021 1:01:10 pm

The artistic recreation includes “elements from the morning scene in blue, the afternoon scene in orange, and a combination of both in green.”

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