Students are advised to review the sample question papers available on the CBSE academic website to understand how questions are grouped and how answers should be presented.

The new dataset, published in Earth System Science Data by 16 scientists, shows a significantly cooler Earth from the late ...

Former US public health officials are sounding alarms about significant changes being made to the country’s vaccine policy under the Trump administration.

Swirling underwater eddies are aggressively melting two Antarctic glaciers, a recent study found, including the one that could raise sea levels by multiple feet.

The US Food and Drug Administration intends to put a “black box” warning on Covid-19 vaccines, according to two people familiar with the agency’s plans.

Vaccine advisers to the US Centers for Disease Control and Prevention are meeting today, and they could vote on possible changes to the childhood vaccination schedule. Follow here for live updates ...

A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked lips with their friends and sexual partners. The behavior may date back 21 ...

The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

Archaeologists say they have found the oldest known instance of fire setting, a key moment in human evolution.

The White House on Monday launched a new program to allow the Department of Energy’s national laboratories to collaborate with tech companies and academics on using AI to further scientific research.

The Geminids are peaking this weekend. Amateurs and experts regard the dazzling celestial display as one of the year’s best meteor showers.

The 21-year-old from central Jiangxi province bought the Indonesian pit viper for 1,850 yuan ($260) two days after the ...