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The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

Can't get enough science? Catch up with Pete Spotts @pspotts on #asteroid, #Mars, tiny planest: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @pspotts tackles Russian #asteroid, #Mars, and the smallest planet: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in #Space: Pete Spotts @pspotts tackles Russian asteroid, #Mars, & the smallest planet: #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @pspotts tackles Russian #asteroid, #Mars, and the smallest planet: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

Can't get enough science? Catch up with Pete Spotts @pspotts on #asteroid, #Mars, tiny planest: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @pspotts tackles Russian #asteroid, #Mars, and the smallest planet: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

Can't get enough science? Catch up with Pete Spotts @pspotts on #asteroid, #Mars, tiny planest: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @pspotts tackles Russian #asteroid, #Mars, and the smallest planet: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

Can't get enough science? Catch up with Pete Spotts @pspotts on #asteroid, #Mars, tiny planest: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @pspotts tackles Russian #asteroid, #Mars, and the smallest planet: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

Can't get enough science? Catch up with Pete Spotts @pspotts on #asteroid, #Mars, tiny planest: #Space #NASA

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Monitor science reporter Pete Spotts tackles asteroids, Mars, and the smallest planet yet discovered Russian asteroid highlights astronomers' challenge: predicting such space...

The Monitor in Space: Pete Spotts @w1pns tackles asteroids, Mars, and the smallest planet:

What killed the dinosaurs? New evidence strengthens asteroid hypothesis.

What killed the dinosaurs? New evidence strengthens asteroid hypothesis.

What killed the dinosaurs? New evidence strengthens asteroid hypothesis.

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