Sun

Sun-like star can help decode sun's variability, climate effect

Sun-like star can help decode sun's variability, climate effect

By combining photometric, spectroscopic and asteroseismic data, the team collected the most detailed set of observations for a solar-like cycle in any star other than the Sun. 
 

Jan 09, 2018, 16:49 PM IST
Giant 'dying star' presents an image of the Sun's future – See pics

Giant 'dying star' presents an image of the Sun's future – See pics

Images captured using the Atacama Large Millimeter/submillimeter Array (ALMA) telescopes showed that the star W Hydrae, which is at a distance of 320 light years in the constellation of Hydra, is a giant with a diameter twice the size of Earth's orbit around the Sun.

Nov 08, 2017, 10:25 AM IST
This is why Sun's atmosphere is much hotter than its surface

This is why Sun's atmosphere is much hotter than its surface

The corona is hundreds to thousands of times hotter than the Sun's visible surface, the photosphere.
 

Oct 14, 2017, 13:33 PM IST
This star swallowed its own planets

This star swallowed its own planets

Dubbed Kronos after the child-eating Titan of Greek mythology, the star is the clearest and most dramatic case yet of a Sun-like star consuming its own planets

Oct 13, 2017, 16:14 PM IST
This is how scientists plan to avert solar storms striking Earth

This is how scientists plan to avert solar storms striking Earth

A solar storm has the capacity to shut down electric grids, damage supply chains and global communication services, resulting in a lot of loss.

Oct 11, 2017, 17:06 PM IST
'Planet 9' formed closer to home than believed: Study

'Planet 9' formed closer to home than believed: Study

The outskirts of the solar system have always been something of an enigma, with astronomers in the late 19th and early 20th centuries searching for a giant planet that was not there, and the subsequent discovery of Pluto in 1930.

Sep 16, 2017, 18:27 PM IST
Sun-like stars calm down after turbulent youth

Sun-like stars calm down after turbulent youth

From studies of solar X-ray emission, astronomers have determined that the corona is heated by processes related to the interplay of turbulent motions and magnetic fields in the outer layers of a star.

Sep 07, 2017, 19:38 PM IST
Flaring up! NASA's SDO captures two significant solar flares

Flaring up! NASA's SDO captures two significant solar flares

The two eruptions occurred in an active region of the sun where an eruption of average intensity occurred on September 4.

Sep 07, 2017, 18:22 PM IST
US solar eclipse: IISER-Kolkata team's prediction captures 'almost all major features correctly'

US solar eclipse: IISER-Kolkata team's prediction captures 'almost all major features correctly'

The prediction by a team of physicists led by IISER-Kolkata on how the corona of the sun would look during the August 21 'Great American Solar Eclipse' has captured "almost all the major features" of the corona correctly, a statement said on Wednesday.

Aug 23, 2017, 19:24 PM IST
This is why eating untimely affects your skin!

This is why eating untimely affects your skin!

The findings indicates that people who eat late at night are more vulnerable to sunburn and longer-term effects such as skin ageing and skin cancer.

Aug 16, 2017, 19:29 PM IST
Want to know Moon's role in Solar Eclipse? Watch the video

Want to know Moon's role in Solar Eclipse? Watch the video

According to NASA, the Sun take most of the attention in a Solar Eclipse, but the moon also plays a pivotal role.

Jul 22, 2017, 21:35 PM IST
Higher sun exposure may up risk of eye freckles

Higher sun exposure may up risk of eye freckles

The findings showed that eye freckles could indicate the presence or risk of sunlight-triggered eye diseases like cataract or macular degeneration.

Jul 22, 2017, 00:25 AM IST
NASA's SDO captures incredible sunspot that appears tiny but is actually larger than Earth! - Watch video

NASA's SDO captures incredible sunspot that appears tiny but is actually larger than Earth! - Watch video

This sunspot is the first to appear after the sun was spotless for two days, and it is the only sunspot group at this moment.

Jul 14, 2017, 11:19 AM IST
Origins of the sun's swirling jets revealed - NASA scientists bare all secrets!

Origins of the sun's swirling jets revealed - NASA scientists bare all secrets!

The results of this NASA-funded study were published in Science on June 22, 2017 — a special time of the year for the IRIS mission, which celebrates its fourth anniversary in space on June 26.

Jun 23, 2017, 11:04 AM IST
Merging galaxy clusters cause biggest bang in the Universe

Merging galaxy clusters cause biggest bang in the Universe

The two clusters, which are located some 2.4 billion light years away, would create a larger galaxy cluster dubbed by scientists as Abell 115.

Jun 08, 2017, 22:26 PM IST
Citizen scientists uncover cold new world near Sun

Citizen scientists uncover cold new world near Sun

Just six days after the launch of the Backyard Worlds: Planet 9 website in February, four different users alerted the science team to the curious object, whose presence has since been confirmed via an infrared telescope.

Jun 04, 2017, 15:21 PM IST
Astronomers discover cold brown dwarf near our solar system

Astronomers discover cold brown dwarf near our solar system

A brown dwarf, which is a little more than 100 light years away from the Sun was discovered by astronomers with the help of a new citizen-science tool.

Jun 03, 2017, 19:55 PM IST
NASA's spacecraft 'Solar Probe Plus' will aim straight for Sun in 2018!

NASA's spacecraft 'Solar Probe Plus' will aim straight for Sun in 2018!

The US space agency said, the mission aims to brush by the sun, coming closer than any spacecraft in history to its scorching heat and radiation in order to reveal how stars are made.

May 31, 2017, 23:42 PM IST
NASA's announcement on 1st mission 'to touch the Sun' today: What you should know about the Solar Probe Plus

NASA's announcement on 1st mission 'to touch the Sun' today: What you should know about the Solar Probe Plus

At 11 a.m. EDT Wednesday, May 31, NASA will make an announcement about the agency’s first mission to fly directly into our Sun’s atmosphere.

May 31, 2017, 16:10 PM IST
NASA's first ever mission to 'touch the Sun': US space agency to make big announcement this week

NASA's first ever mission to 'touch the Sun': US space agency to make big announcement this week

NASA will reveal details about its new mission at an event at 11 a.m. EDT Wednesday, May 31. The event will air live on NASA Television and the agency’s website.

May 29, 2017, 14:38 PM IST