News tagged with closest approach

Venus Express goes gently into the night

ESA's Venus Express has ended its eight-year mission after far exceeding its planned life. The spacecraft exhausted its propellant during a series of thruster burns to raise its orbit following the low-altitude ...

Dec 17, 2014
4.8 / 5 (22) 10

Countdown to Pluto

One of the fastest spacecraft ever built—NASA's New Horizons—is hurtling through the void at nearly one million miles per day. Launched in 2006, it has been in flight longer than some missions last, and ...

Jan 15, 2014
4.8 / 5 (65) 25 | with audio podcast

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

Comet at dawn

(Phys.org) —Soon after its discovery in late summer of last year, the media hyped ISON to be the comet of the millennium. At the time when it is expected to come closest to the Sun, on 28 November 2013, ...

Nov 12, 2013
5 / 5 (13) 5 | with audio podcast

ISEE-3 comes to visit Earth

(Phys.org) —It launched in 1978. It was the first satellite to study the constant flow of solar wind streaming toward Earth from a stable orbit point between our planet and the sun known as the Lagrangian ...

Apr 21, 2014
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NASA investigating the life of Comet ISON

After several days of continued observations, scientists continue to work to determine and to understand the fate of Comet ISON: There's no doubt that the comet shrank in size considerably as it rounded the ...

Dec 02, 2013
4.6 / 5 (8) 0 | with audio podcast

Image: Siding Spring grazes Mars

This excellent view of Mars seen together with Comet C/2013 A1 Siding Spring was captured by Scott Ferguson, Florida, USA, on 19 October 2014 on the morning that the enigmatic object made the closest-known ...

Oct 22, 2014
5 / 5 (3) 0