Wednesday, 30 November, 2022
TopicSun

Topic: Sun

Why human skin did better with sun before sunscreens

Were people always this obsessed with what the sun would do to their bodies? The short answer is 'no', and they didn’t need to be.

Third planet discovered around Sun’s closest star, Proxima Centauri

The planet named Proxima d orbits Proxima Centauri every 5 days. It's estimated to be just about a quarter of Earth’s mass, making it one of the lightest 'exoplanets'.

This quasi-satellite of Earth could actually be a piece of Moon, astronomers say

Quasi-satellites are asteroids that orbit the Sun with orbital period similar to that of the Earth’s. From Earth’s perspective, they appear to orbit the Earth instead.

Astronomers discover first planet that survived its star’s death, still orbits white dwarf

The planet, situated 6,500 light years away, is like Jupiter in size and relative location. The discovery indicates that some of our solar system's planets could survive the death of the Sun.

Red star Betelgeuse, one of the brightest, not going supernova soon. It just coughed up dust

The bright red star underwent a Great Dimming in 2019-20, prompting some astronomers to speculate if it would go supernova. Findings help us understand giant stars better.

Rainbow-coloured sun halo has Bengaluru photographing the sky today. This is how it formed

A sun halo is more common than rainbows and comes in many shapes and sizes, including a standard circular halo.

185-year-old paintings reveal new snake species in Tamil Nadu

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their sources.

World’s oldest water found in Canada, Oxford researchers say it dates back 1.6 billion years

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their sources.

NASA’s Perseverance rover sends back laser sounds from Mars

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their sources.

There’s a 2nd kind of fusion happening in the Sun, scientists confirm through neutrinos

The detection of these neutrinos shows that while the Sun is primarily powered by proton fusion, bigger & hotter stars are powered by ‘CNO cycle’ fusion.

On Camera

YourTurn

In Gujarat, voters want BJP’s alternative but not of Modi

After ruling Gujarat for 27 years, BJP knows how to shield election outcomes from ground realities such as people’s hardships, leaderless govt and corrupt bureaucracy.
File photo of Russian Foreign Minister Sergei Lavrov and his Indian counterpart Subrahmanyam Jaishankar | Maxim Shipenkov/Pool via Reuters

Modi govt asked by sanction-hit Russia for parts for key sectors, says report

Moscow has sent India a list of over 500 products including parts for cars, aircraft and trains for delivery as sanctions squeeze Russia's ability to keep vital industries running.

Defence

Illustration: Soham Sen | The Print

Modi govt moves with Arunachal Frontier Highway, among India’s ‘toughest’ projects yet, China in mind

The 2,000 km-long highway will be of strategic importance to military. Same equipment used on other side of LAC being deployed to carry out work on tough terrain, say officials.

A Gujarat gamble: A likely reason Rahul is not giving Modi a fight this assembly election

I'd rather not buy idea that Rahul's holding his fire until 2024. More likely, Congress believes Karnataka offers best chance of winning a Gujarat-sized state if Gujarat is too challenging.