Aug 1st-Space Related

BeiDou

China-Navigation Satellite System Constellation

Provide positioning services

Transportation, emergency medical rescue

city planning and management areas

Countries

GPS- owned by US govt and operated by US Air Force

Russia- GLONASS

EU- GALILEO

India-NAvIC

Starship

Spacecraft and super-heavy booster rocket

meant to act as reusable transportation system

help to carry

large amount of cargo to moon

for human spaceflight R&D

Magnetic field of Sun´s Atmosphere

observation from

Coronal Multi-channel Polarimeter (CoMP)

Instrument

provide measurement

infrared radiation

coming from

Sun´s atmosphere

Sun is a magnetized star

Technique

called Magnetoseismology

measure magnetic field of corona

use of magnetic waves

known as Alfven waves

corona hotter than sun´s surface

Magnetic reconnection

Process

where oppositely

polarity magnetic

field lines connect

some of magnetic energy

converted to heat energy

also kinetic energy

leads to generation of heating,

solar flares, solar jets, etc

Mechanisms

eruptions of sun

such as

solar flares and coronal mass ejections

driven by

magnetic reconnections

Perseids Meteor Shower

every year in mid-Aug

comets

Every time comets come close to sun

leave behind dust

essentially the debris trail

earth passes through every year

Meteors

Space rocks extremely hot

behind streaks of glowing gas

Perseids occurs

Earth runs into Pieces of cosmic

debris left behind by

comet Swift-Tuttle

SPT0418-47

galaxy away resembling our Milky way

Alma radio telescope in Chile

using a technique called

gravitational lensing

distribution of matter

btw a distant light source and observer

capable of bending the light

from the source

as the light travels

towards the observer

Omega Centauri

Centaurus

global clusters in constellation of Centaurus

Centaurus in southern sky

brightest and largest globular cluster in Milky way

gaseous cloud

IIA

Indian Institute of Astrophysics

Scientists

discovered He-enhanced cool bright stars

among the metal-rich sample of OC

He-enhanced

established are 2nd generation of stars

formed from metal-rich

material from 1st generation of stars

SALT

optical telescope

located in semi-desert region of Karoo, SA

Southern African Large Telescope (SALT)

designed for spectroscopy

largest in southern hemisphere

enables

imaging, spectroscopic, and polarimetric

analysis of radiations from astronomical objects

out of reach of northern hemisphere telescopes