Venus orbits the sun one step inward from Earth. It'll pass between us and the sun in mid-August. Until then, telescopes will show Venus as a waning crescent.
Astronomers see a bridge of dark matter stretching from our Local Group to the Virgo galaxy cluster. It's bound on each side by vast bubbles devoid of galaxies.
New Horizons' data will take 4.5 hours to reach Earth. The radio signals will be weak, practically whispers. Afterwards, New Horizons data is expected to take up to a year to transmit fully back to Earth.
If we took Earth and Venus - and had them orbit a cool, red star not too far away - could the James Webb Space Telescope tell which planet was habitable?
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.