August 2019 – Astronomy Now

WFIRST telescope passes preliminary design review

30 August 2019 Astronomy Now

NASA’s Wide Field Infrared Survey Telescope optical system passes a preliminary design review, a major milestone in the Hubble-class wide-field observatory.

Earth’s chemical fingerprint could help identify habitable exoplanets

29 August 2019 Astronomy Now

Canadian astronomers have determined Earth’s spectral “fingerprint,” the characteristics that would indicate whether an exoplanet might have a viable biosphere.

NASA helicopter attached to agency’s Mars 2020 rover

29 August 2019 Astronomy Now

An experimental helicopter has been attached to NASA’s Mars 2020 rover, a pathfinder that could pave the way for more advanced aircraft on future missions.

James Webb Space Telescope mirror, instruments mated with spacecraft

28 August 2019 Astronomy Now

James Webb Space Telescope’s mirrors and science instruments have been mechanically attached to the observatory’s sunshield and subsystems, a major milestone for engineers building the infrared telescope. Launch from French Guiana remains targeted for 2021.

Exoplanet found in unusually long, elliptical orbit

28 August 2019 Astronomy Now

Astronomers find an exoplanet three times more massive than Jupiter in an extreme elliptical orbit, another milestone for the radial velocity detection technique.

IAU approves names for newly discovered moons

26 August 2019 Astronomy Now

The IAU approves names for five newly discovered moons of Jupiter

Watch the crescent Moon graze a double star at dawn on 27 August

26 August 2019 Ade Ashford

Depending on where you live in the British Isles, you may be fortunate to view a lunar occultation of naked-eye double star delta (δ) Geminorum at dawn on Tuesday, 27 August 2019. Observers fortunate enough to lie on the so-called graze line will see the star appear to flicker on and off as the mountains and valleys of the northern lunar polar regions drift by.

30 years later, Voyager 2’s flyby of Neptune still thrills

22 August 2019 Astronomy Now

Three decades ago, on 25 August 1989, the Voyager 2 spacecraft raced past Neptune and its icy moon Triton, thrilling scientists and the public at large with spectacular images that remain unrivaled today.

Second giant planet found orbiting Beta Pictoris

22 August 2019 Astronomy Now

Astronomers have found a second giant planet orbiting the nearby star Beta Pictoris where a solar system is in the process of forming.

See the Moon hide a trio of Hyades stars at dawn on 24 August

20 August 2019 Ade Ashford

Have you ever seen the Moon hide a star? If you’re an early riser in the UK with a small telescope on Saturday, 24 August 2019 then you can potentially witness the disappearance and reappearance of three naked-eye stars in the Hyades open star cluster of Taurus between 3:40am BST and shortly after sunrise.