- Paul Allen: Microsoft co-founder and billionaire dies aged 65
- Asia stocks at 17-month low as China lets yuan slip
- UK announces $22.25m support for Rohingya refugees
- IMF forecasts 7.1pc economic growth for Bangladesh in 2019
- Bangladesh ‘least committed’ to cut rich-poor gap: Oxfam
- Bhashani Univ suspends 5 BCL leaders ‘for misbehaving with teachers’
- NKorea hackers broke into banks, tried to take US$1.1b
- Oil spill threatens Meghna; unheeded for 5 days
- Haiti quake death toll rises to 15, and 300 injured
- PM Sheikh Hasina donates Tk 50 lakh for Prof MahbubÕs treatment
Voyager 2 expected to enter interstellar space
NASA's Voyager 2 spacecraft launched way back in 1977 when bell bottoms and disco were in style. All these decades later, the probe appears to be nearing a massive milestone: an entry into interstellar space.
Voyager 2 has been travelling through the heliosheath, the outermost layer of the heliosphere, for over a decade. NASA describes the heliosphere as a "vast bubble around the Sun and the planets dominated by solar material and magnetic fields."
The probe is currently just under 11 billion miles (about 17.7 billion kilometres) from Earth, reports CNN.
Voyager 1 is currently the only human-made object to enter interstellar space. NASA scientists aren't sure when Voyager 2 will join its twin by crossing the heliosphere boundary, an area known as the heliopause.
"We're going to learn a lot in the coming months, but we still don't know when we'll reach the heliopause. We're not there yet -- that's one thing I can say with confidence," says Voyager project scientist Ed Stone.
Voyager 2 is the only spacecraft to visit Uranus and Neptune. Its adventures in the outer solar system led to the discovery of new moons around the gas giant planets. Despte the age of the probe, NASA hopes to continue to collect data from it until at least 2025.