News tagged with sun

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Brown dwarf companion stars

(Phys.org) —Astronomers trying to understand how the Sun and Earth formed, and why they have their characteristic properties, have made progress on a closely related problem: the nature of the lowest mass ...

Sep 02, 2013
4.3 / 5 (4) 0 | with audio podcast

SDO mission untangles motion inside the Sun

(Phys.org) —Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move ...

Aug 28, 2013
5 / 5 (10) 2 | with audio podcast

Large coronal hole near the sun's north pole

The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured this image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT. Coronal holes ...

Jul 20, 2013
4.6 / 5 (22) 33 | with audio podcast

FOXSI to observe X-rays from Sun

An enormous spectrum of light streams from the sun. We're most familiar with the conventional visible white light we see with our eyes from Earth, but that's just a fraction of what our closest star emits. ...

Dec 08, 2014
5 / 5 (2) 0

What is the Smallest Star?

Space and astronomy is always flaunting its size issues. Biggest star, hugest nebula, prettiest most talented massive galaxy, most infinite universe, and which comet came out on top in the bikini category. ...

Dec 05, 2014
4.7 / 5 (29) 7

ESA image: Comet ISON's swansong

Some had hoped comet ISON would be the comet of the century, lighting Earth's skies during the latter months of 2013. Instead, it was barely visible for ground-based observers, but the Solar and Heliospheric ...

Dec 01, 2014
3.4 / 5 (5) 1

NASA's SDO shows moon transiting the Sun

On Nov. 22, 2014 from 5:29 to 6:04 p.m. EST., the moon partially obscured the view of the sun from NASA's Solar Dynamics Observatory. This phenomenon, which is called a lunar transit, could only be seen from ...

Nov 26, 2014
5 / 5 (2) 0