3 October 2025
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Month: December 2018

News

Ultima Thule poses an initial surprise for New Horizons team

23 December 2018 Astronomy Now

NASA’s New Horizons probe, racing toward a 1 January flyby of the Kuiper Belt body known as Ultima Thule, has given scientists their first major surprise: the oblong, or binary body shows no signs of a discernible light curve suggesting rotation.

News

Radar images reveal near-Earth asteroid on path by Earth

22 December 2018 Astronomy Now

Radar images reveal a 1.6-kilometre-long (1-mile-long) splinter-like asteroid tumbling as it races along a trajectory carrying it within 3 million kilometres (1.8 million miles) of Earth.

News

Faint glow generated by galaxy clusters helps map dark matter

22 December 2018 Astronomy Now

By studying the faint glow produced by freely floating stars in mammoth galaxy clusters, astronomers may be able to map the distribution of dark matter in a more efficient manner.

Picture This

A holiday “star wreath” from the Hubble Space Telescope

21 December 2018 William Harwood

In a holiday Hubble image, the Cepheid variable star RS Puppis, 10 times more massive than the sun and 200 times larger, shines in a wreath-like “gossamer cocoon” of dust, brightening and dimming over a 41.5-day cycle.

News

Astronomers find most distant Solar System body to date

19 December 2018 Astronomy Now

Astronomers have found the most distant body yet discovered in Earth’s solar system, a dwarf planet 120 times farther from the Sun than Earth.

Picture This

Galaxies peek through star clouds in massive cluster

19 December 2018 Astronomy Now

A middle-age star cluster in the Small Magellanic Cloud is populated by countless stars, but galaxies in the far distance peak through, giving viewers at least a sense of the overwhelming scale of the cosmos.

News

New Horizons’ path to Ultima Thule clear of hazards

19 December 2018 Astronomy Now

After a careful analysis of the path ahead, no rings or moons have been found that could threaten the New Horizons probe on its approach to Ultima Thule.

News

Binary star ‘odd couple’ spotted by ALMA

16 December 2018 Astronomy Now

The Atacama Large Millimeter/submillimeter Array has spotted a young binary star system in which two very different size suns are in the process of forming in a swirling cloud of gas and dust.

News

Filling in the blanks in Hubble’s ‘deep field’ view of cosmos

14 December 2018 Astronomy Now

A newly released “deep field” image from the Hubble Space Telescope captures galaxies during the epoch of massive star formation three billion years after the Big Bang.

News

Tangled magnetic fields may power jets from supermassive black holes

14 December 2018 Astronomy Now

New computer simulations show tangled magnetic fields in jets streaming away from supermassive black holes may be creating powerful electric fields and currents accelerating particles to enormous energies

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News Headlines

  • Nova outburst in Centaurus
    24 September 2025
  • Astronomy Now relaunches digital platform
    12 September 2025
  • Potentially habitable planet TRAPPIST-1e displays tentative evidence for an atmosphere
    8 September 2025
  • Ten-Year Lease Extension Confirmed at Herstmonceux Observatory
    18 August 2025
  • Graphic showing the close conjunction of Jupiter and Venus with other stars and contellations marked on a dark sky, above a horizon with trees in silhouette.
    Venus and Jupiter’s bright morning conjunction
    10 August 2025
  • Home
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