The Daniel K. Inouye Solar Telescope on the island of Maui has a 13-foot (four meters) mirror, the world's largest for a solar telescope.
31 Jan 2020 2:07 PM
Observations of the Sun have shown that as the magnetic waves leave its interior, they grow in strength soon scientists may know why.
03 Dec 2019 12:21 PM
The items were examined at the Diamond Light Source facility in Oxfordshire, home to Britain’s synchrotron.
03 Oct 2019 7:42 AM
If a superflare erupted from the sun, Earth would likely sit in the path of a wave of high-energy radiation.
24 Jun 2019 12:17 PM
Ultima Thule's surface reflects light about as much as "garden variety dirt.”
03 Jan 2019 8:27 AM
NASA's Voyager 2 has detected an increase in cosmic rays that originate outside our solar system, the US space agency said.
07 Oct 2018 5:21 PM
The flyby is the first of seven that will draw Parker ever closer to the sun.
03 Oct 2018 9:28 AM
A scrawny dwarf planet nicknamed the Goblin has been discovered well beyond Pluto.
03 Oct 2018 9:22 AM
The $1.5 billion mission is already a week late because of rocket issues.
12 Aug 2018 10:42 AM
The Parker probe is set to fly into the Sun’s corona within 3.8 million miles (6.1 million km) from the solar surface.
21 Jul 2018 2:43 PM
A person's age and other factors affect how and when heat become deadly.
27 May 2018 10:14 AM
It's a tricky business, since biosignatures based on single measurements of atmospheric gases could be misleading.
10 May 2018 8:41 PM
Find out more about the dangers.
06 Apr 2018 11:52 AM
Use a broad-spectrum (UVA & UVB) sunscreen SPF 30 or above, which must also be non-comedogenic and non-allergic.
24 Mar 2018 3:56 PM
It's also invisible, because the sun is illuminating the side of the moon that always faces away from Earth.
12 Mar 2018 7:03 PM
NASA is accepting online submissions for this hottest ticket in town.
08 Mar 2018 8:24 AM
The right amount of vitamin D reduces the risk of death substantially.
03 Mar 2018 1:29 PM
Sun rays can still carry the same UVA and UVB rays as they do in summers and in snowy regions.
22 Jan 2018 10:59 AM
The 4,000 solar panels with a total capacity of 12.9 megawatts are designed to provide 14 hours of electricity a day.
14 Nov 2017 2:21 PM
Scientists have discovered a monster planet orbitting a small, distant star.
04 Nov 2017 2:46 PM