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Sun
The sun was born when a dense gas cloud collapsed, 4.6 billion years ago
Our solar system today is mainly composed of a central star — the sun — along with an inner solar system with rocky planets, and an outer solar system with gas and ice giant planets. However, it hasn’t always been that way.
08 April 2024, 07:05 IST
The sun was born when a dense gas cloud collapsed, 4.6 billion years ago
08 April 2024, 07:05 IST
The total solar eclipse is a cosmic spectacle well worth the hype
In a solar eclipse, the moon passes in between Earth and the sun, casting its shadow on Earth.
06 April 2024, 07:14 IST
The total solar eclipse is a cosmic spectacle well worth the hype
06 April 2024, 07:14 IST
Bengaluru researchers' study could help predict the impact of space weather on planets in the solar system
Researchers at the Indian Institute of Astrophysics (IIA) in Bengaluru, along with international collaborators, have modelled the continuous thermodynamic evolution of coronal mass ejections (CMEs) which is critical for understanding the sun-earth connection.
10 January 2024, 08:33 IST
Bengaluru researchers' study could help predict the impact of space weather on planets in the solar system
10 January 2024, 08:33 IST
ISRO gears up to put spacecraft Aditya-L1 in its final destination orbit on Jan 6
The spacecraft underwent a series of maneuvers thereafter and headed Sun-Earth Lagrange Point 1(L1), having escaped the Earth's sphere of influence.
05 January 2024, 09:28 IST
ISRO gears up to put spacecraft Aditya-L1 in its final destination orbit on Jan 6
05 January 2024, 09:28 IST
Aditya-L1 payload captures full-disk images of the Sun
Releasing the images on Friday, Isro said they could provide scientists with “pioneering insights” into intricate details of the Sun's photosphere and chromosphere, its visible surface, and the layer of atmosphere above it.
08 December 2023, 15:47 IST
Aditya-L1 payload captures full-disk images of the Sun
08 December 2023, 15:47 IST
Solar storm to strike Earth today, radio and GPS services to get affected
A solar storm is a coronal mass ejection (CME) that consists of waves expelled from the Sun that can flow outward across the heliosphere, affecting the entire Solar System, including Earth.
01 December 2023, 06:56 IST
Solar storm to strike Earth today, radio and GPS services to get affected
01 December 2023, 06:56 IST
The Sun’s activity cycle is reaching its peak early: Knowing why could help us unlock the secrets of our star
This solar activity varies with time. It peaks every 11 years – and the next high point had been forecast for July 2025. But it now looks as if this “solar maximum” will arrive earlier than expected. This finding could lead to a better understanding of our host star.
27 October 2023, 06:08 IST
The Sun’s activity cycle is reaching its peak early: Knowing why could help us unlock the secrets of our star
27 October 2023, 06:08 IST
The sun's magnetic poles are vanishing
“Right now it looks like the sun’s polar fields are fairly well in sync,” says Lisa Upton, a solar scientist at the Southwest Research Institute in Boulder, Colo. “They’re getting really close to zero, so they’re getting very, very weak, but we haven’t quite hit the reversal yet.”
20 October 2023, 11:35 IST
The sun's magnetic poles are vanishing
20 October 2023, 11:35 IST
The Milky Way may be missing a trillion suns' worth of mass
Several independent groups have reported oddly sluggish orbits of stars along the Milky Way’s outer rim. One possible explanation for this is that our galaxy is extraordinarily deficient in dark matter, or another is that our core conceptions about dark matter are somehow deeply flawed.
11 October 2023, 14:30 IST
The Milky Way may be missing a trillion suns' worth of mass
11 October 2023, 14:30 IST
Solar mission spacecraft Aditya-L1 gets send off from Earth as ISRO performs key manoeuvre
The Indian Space Research Organisation (Isro) successfully performed the Trans-Lagrangian Point 1 Insertion (TL1I) at around 2 am, marking the commencement of the spacecraft’s 110-day journey to L1.
19 September 2023, 01:08 IST
Solar mission spacecraft Aditya-L1 gets send off from Earth as ISRO performs key manoeuvre
19 September 2023, 01:08 IST
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