Here’s something you – or your kids – might have noticed: When you’re in a moving car, earthly objects get left behind, but the moon seems to follow. Why?
Full moon photo by EarthSky community member Fernando Alvarenga in San Salvador.
In 2013, in a big success story, a Mars rover and orbiter made a near-simultaneous observation of methane in Mars’ atmosphere. Now a newer mission orbiting Mars – ESA’s Trace Gas Orbiter – has failed to detect methane. Why?
Illustration of ESA's Trace Gas Orbiter, part of the ExoMars mission, analyzing the Martian atmosphere. Image via ESA/ATG medialab.
The giant exoplanet – 13 times more massive than Jupiter – is the first yet found that orbits a binary star system in which 1 of the 2 stars is dead.
Artist's impression of the exoplanet. Image via
A bright meteor was caught in many dashcam videos – in broad daylight – on April 6, 2019, over the Russian city of Krasnoyarsk. See a video compilation here.
The bright meteor was seen in broad daylight on April 6, 2019. Image is a video still, via the International Meteor Organization.
In 2019, April 23 is the expected peak morning. There will be a bright waning gibbous moon in the sky. Want to make the most of this year’s Lyrid meteor shower? Here’s how.
Lyrids and others via NASA/MSFC/D. Moser
The NASA Twins study – featuring astronaut twins Scott and Mark Kelly – was the perfect space experiment. Scott spent a year in space aboard the International Space Station. Mark remained on Earth. The results?
Easter is this Sunday. Astronomer Guy Ottewell explains why it’s a late Easter, but not the latest it can be.
Image via TheAldertonSwan.
We see this nearly star system as a single star in our sky, but it’s really 3 stars. Of the 3, Proxima is closer to our sun than any other known star.
The foreground of this image shows the Very Large Telescope of the European Southern Observatory (ESO). In August 2016, ESO announced a planet
orbiting the star Proxima in the Alpha Centauri system. Astronomers call it Proxima b, and it's now the nearest known exoplanet to Earth. See a list of the nearest exoplanets
. Image via ESO
Beta Centauri – aka Hadar – joins Alpha Centauri in pointing to the Southern Cross. Like Alpha, Beta Centauri is also 3 stars, but 2 of Beta’s stars will someday become nearby supernovae.
View at EarthSky Community Photos
. | Dr Ski
in Valencia, Philippines captured the Southern Pointer Stars - Alpha Centauri (far left) and Beta Centauri - aimed at Crux, aka the Southern Cross. He wrote: "When you see the Southern Cross for the first time, you understand now why you came this way. -CS&N
." Thanks, Dr Ski!