An arm to the sun

Spacecraft and Space Missions

Newest Starlink Satellites Have Gotten Brighter Again

Changes to the design of Starlink satellite spacecraft have made them brighter again, though still dimmer than the original design.

VisorSat

Astronomy and Society

Starlink Satellites Are Fainter Now — But Still Visible

Measurements of Starlink's "VisorSat" show SpaceX has succeeded in making a less reflective satellite. But it's still visible from dark-sky areas.

Venus-Jupiter conjunction

Celestial Objects to Observe

How Bright Are the Planets?

What do Venus and Jupiter have in common? Revisions to planets' magnitudes in this year's Astronomical Almanac have revealed some surprises.

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