Tuesday, Nov 21, 2017 | Last Update : 09:18 PM IST

Science

Endangered orcas compete with seals, sea lions for salmon

A study suggests that competition from other marine mammals might be bigger problem for a small group of killer whales.

21 Nov 2017 1:58 PM

First-known interstellar asteroid is a unique and shaped like a cigar

It’s thought to be about a quarter-mile long, and about 10 times longer than it is wide.

21 Nov 2017 1:03 PM

Life on Mars: Streaks may be sand, not water

Mars theory gets dusted; a new study suggests that dark streaks on Mars represent flowing sand - not water.

21 Nov 2017 9:25 AM

‘New ARV drugs, early diagnosis key to beating AIDS epidemic’

South Africa led the world with the number of people on treatment, at 4.2 million.

21 Nov 2017 1:14 AM

US approves digital pill that tracks when patients take it

The system offers doctors an objective way to measure if patients are swallowing their pills on schedule.

20 Nov 2017 8:10 PM

New US weather satellite launched from California

The satellite will contribute to near-term weather forecasts, climate and ocean dynamics research, among many other uses.

20 Nov 2017 8:58 AM

Paris Acccord: What is next?

A look at steps, which will be taken in the coming years to further international efforts to curb global warming.

20 Nov 2017 8:16 AM

20 years of changing seasons on earth packed into 2½ minutes

It took three months to complete the visualisation, using satellite imagery.

18 Nov 2017 6:03 PM

Interstellar visitor shaped like giant fire extinguisher

The scientists report that our solar system could be packed with 10,000 such interstellar travellers at any given time.

17 Nov 2017 4:08 PM

Toxic Algae: Once a nuisance, now a severe nationwide threat

Last year, Florida's governor declared a state of emergency and beaches were closed when algae blooms spread from Okeechobee to estuaries.

17 Nov 2017 1:23 PM