Solar Polar Orbiter
The trajectory of the proposed Solar Polar Orbiter mission that would enable it to fly over the poles of the sun.

A new decadal survey for solar and space physics recommends that NASA’s heliophysics program pursue two billion-dollar missions even as the agency proposes to cancel a recommendation from the previous decadal.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...