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=== Health === ==== Low Earth orbit ==== For astronauts in [[low Earth orbit]], an expected radiation dose from the electromagnetic radiation emitted during a solar flare is about 0.05 [[Gray (unit)|gray]], which is not immediately lethal on its own. Of much more concern for astronauts is the [[particle radiation]] associated with solar particle events.<ref>{{cite journal |last1=Whittaker |first1=Ian |title=The invisible space killers β The dangers of space radiation from both inside and outside the solar system |url=https://www.physoc.org/magazine-articles/the-invisible-space-killers/ |journal=Physiology News Magazine |doi=10.36866/pn.117.36 |s2cid=214067105 |access-date=14 June 2022}}</ref>{{Better source needed|date=June 2022}} ==== Mars ==== The impacts of solar flare radiation on Mars are relevant to [[Exploration of Mars|exploration]] and the search for [[life on Mars|life on the planet]]. Models of its atmosphere indicate that the most energetic solar flares previously recorded may have provided acute doses of radiation that would have been almost harmful or lethal to mammals and other [[higher organism]]s on Mars's surface. Furthermore, flares energetic enough to provide lethal doses, while not yet observed on the Sun, are thought to occur and have been observed on other [[Sun-like star]]s.<ref>{{cite journal |last1=Smith |first1=David S. |last2=Scalo |first2=John |title=Solar X-ray flare hazards on the surface of Mars |journal=Planetary and Space Science |date=March 2007 |volume=55 |issue=4 |pages=517β527 |doi=10.1016/j.pss.2006.10.001 |bibcode=2007P&SS...55..517S |arxiv=astro-ph/0610091}}</ref><ref>{{cite journal |last1=Jain |first1=Rajmal |last2=Awasthi |first2=Arun K. |last3=Tripathi |first3=Sharad C. |last4=Bhatt |first4=Nipa J. |last5=Khan |first5=Parvaiz A. |title=Influence of solar flare X-rays on the habitability on the Mars |journal=Icarus |date=August 2012 |volume=220 |issue=2 |pages=889β895 |doi=10.1016/j.icarus.2012.06.011 |bibcode=2012Icar..220..889J}}</ref><ref>{{cite journal |last1=Thirupathaiah |first1=P. |last2=Shah |first2=Siddhi Y. |last3=Haider |first3=S.A. |title=Characteristics of solar X-ray flares and their effects on the ionosphere and human exploration to Mars: MGS radio science observations |journal=Icarus |date=September 2019 |volume=330 |pages=60β74 |doi=10.1016/j.icarus.2019.04.015 |bibcode=2018cosp...42E1350H}}</ref>
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