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As the Sun grows in size, its outer layers would expand, red giant

Here's what your body could experience if the Sun slowly evolved into a red giant

June 04, 2025 1:30 pm

If the Sun were to begin its gradual expansion into a red giant, the most immediate physical effects on the human body would be…

A massive star ends in a brilliant supernova, scattering the elements of life across the cosmos. (AI-generated image/DALLE)

How stars die: White dwarfs, neutron stars and supernovae

June 12, 2025 11:17 am

The lives and deaths of stars shape the universe—from the gentle fading of white dwarfs to the explosive furnaces that forged the elements of life.

When and where you can observe ‘zero shadow day’ in Bengal

May 14, 2025 5:36 pm

Zero Shadow' happens when the Sun is directly overhead and objects don’t cast a shadow

Astronomers have spotted potential signs of life on K2-18b, but scientists are urging caution. (Express Image/FreePik)

Why it's too early to celebrate signs of alien life on K2-18b

May 02, 2025 3:28 pm

Scientists have found possible signs of life on a distant planet, but it’s too early to know for sure. Here’s what makes K2-18b so interesting.

In astronomy, training also includes night-sky observation and telescope handling sessions.

Belgium keen to continue collaboration with India on building telescopes, astronomy instruments

March 18, 2025 11:04 am

Her Royal Highness Princess Astrid of Belgium led the contingent of diplomats, industrialists, academicians, and defence and trade officials to India from March 1 to 8.

Here's what can happen to the body if a needle travelling at the speed of light hits Earth’s surface

February 24, 2025 3:30 pm

Expert talks about the immediate and long-term implications of such an event

5 planets, moon to align in straight line tonight

January 25, 2025 7:05 pm

Moon along with Mercury; Earth's neighbours Venus and Mars; Jupiter and Saturn will align in a straight line and will be visible in the night sky.

Sky chart showing the planetary lineup visible after dark in January 2025. (NASA/JPL-Caltech)

Rare planetary alignment: How to watch 6-planet parade from India

January 28, 2025 6:56 pm

In a rare occurrence, as many as six planets are set to shine bright in the sky tonight.

Is the ongoing ‘planet parade’ rare?

January 17, 2025 2:02 pm

Six planets — Venus, Saturn, Jupiter, Mars, Uranus, and Neptune — are currently forming a breathtaking arc in night night sky

A brown dwarf discovered 30 years ago is actually twins circling each other

October 17, 2024 12:46 am

Astronomers have previously spotted brown dwarf pairs, but these two orbit each other at a much closer range, completing a full orbit every 12 days—shorter than the time it takes for the moon to circle the Earth.