News – Page 47 – Astronomy Now

New study hints at early galaxies lighting up cosmos

9 May 2019 Astronomy Now

Deep field observations by the Hubble and Spitzer space telescopes reveal many ancient galaxies shining brighter than expected, possibly providing energy to help turn the cosmos transparent.

Spitzer Space Telescope puts M87’s black hole in context

8 May 2019 Astronomy Now

NASA’s Spitzer Space Telescope puts iconic black hole image in context, showing what amounts to a wide-angle view capturing jets spewing away from M87.

Black hole sports warped accretion disc, fast-moving jets

7 May 2019 Astronomy Now

Detailed studies of outbursts from a black hole binary reveal a warped accretion disc that triggers skewed polar jets.

Astronomers eager to study asteroid during 2029 close flyby of Earth

6 May 2019 Astronomy Now

Scientists are already planning campaigns to observe the near Earth asteroid 99942 Apophis when it whips past Earth in April 2029.

Upgraded LIGO and Virgo stations observe multiple gravity wave events

5 May 2019 Astronomy Now

The LIGO and Virgo gravity wave observatories, recently upgraded to improve sensitivity, have detected five black hole and neutron star mergers in a single month.

Rock that hit Moon during lunar eclipse likely impacted at 61,000 kph

30 April 2019 Astronomy Now

A detailed analysis of the flash produced when a meteoroid crashed into the surface of the Moon during January’s lunar eclipse shows the body likely gouged a crater up to 15 metres (49 feet) across.

Hubble constant mismatch no fluke; new physics may be needed

27 April 2019 Astronomy Now

More precise observations of pulsating Cepheid variable stars confirms a major discrepancy in values of the Hubble constant.

French seismometer detects first likely “marsquake”

24 April 2019 Astronomy Now

An ultrasensitive French seismometer carried to Mars by NASA’s InSight lander has detected its first “marsquake.”

Five long-period exoplanets found after 20 years of observation

23 April 2019 Astronomy Now

Persistence pays off as University of Geneva researchers confirm five long-period exoplanets after 20 years of observations

Mercury has a heart of iron; literally

22 April 2019 Astronomy Now

Mercury’s molten metal outer core surrounds a solidified solid iron inner core, according to an analysis of data collected by the MESSENGER orbiter.